diff --git a/src/mbgl/annotation/annotation_source.cpp b/src/mbgl/annotation/annotation_source.cpp
index 1589370f0..50fa7a2c0 100644
--- a/src/mbgl/annotation/annotation_source.cpp
+++ b/src/mbgl/annotation/annotation_source.cpp
@@ -1,5 +1,6 @@
 #include <mbgl/annotation/annotation_source.hpp>
 #include <mbgl/annotation/annotation_manager.hpp>
+#include <mbgl/annotation/annotation_tile.hpp>
 
 namespace mbgl {
 
@@ -7,4 +8,9 @@ AnnotationSource::AnnotationSource()
     : Source(SourceType::Annotations, AnnotationManager::SourceID, "", util::tileSize, std::make_unique<Tileset>()) {
 }
 
+std::unique_ptr<Tile> AnnotationSource::createTile(const OverscaledTileID& tileID,
+                                                   const style::UpdateParameters& parameters) {
+    return std::make_unique<AnnotationTile>(tileID, id, parameters);
+}
+
 } // namespace mbgl
diff --git a/src/mbgl/annotation/annotation_source.hpp b/src/mbgl/annotation/annotation_source.hpp
index befff2de8..033580b64 100644
--- a/src/mbgl/annotation/annotation_source.hpp
+++ b/src/mbgl/annotation/annotation_source.hpp
@@ -7,6 +7,9 @@ namespace mbgl {
 class AnnotationSource : public style::Source {
 public:
     AnnotationSource();
+
+private:
+    std::unique_ptr<Tile> createTile(const OverscaledTileID&, const style::UpdateParameters&) final;
 };
 
 } // namespace mbgl
diff --git a/src/mbgl/style/source.cpp b/src/mbgl/style/source.cpp
index d806e3140..35acf3dd5 100644
--- a/src/mbgl/style/source.cpp
+++ b/src/mbgl/style/source.cpp
@@ -20,10 +20,6 @@
 #include <mbgl/util/tile_cover.hpp>
 #include <mbgl/util/enum.hpp>
 
-#include <mbgl/tile/raster_tile.hpp>
-#include <mbgl/tile/geojson_tile.hpp>
-#include <mbgl/tile/vector_tile.hpp>
-#include <mbgl/annotation/annotation_tile.hpp>
 #include <mbgl/style/parser.hpp>
 #include <mbgl/gl/debugging.hpp>
 
@@ -184,23 +180,6 @@ const std::map<UnwrappedTileID, RenderTile>& Source::getRenderTiles() const {
     return renderTiles;
 }
 
-std::unique_ptr<Tile> Source::createTile(const OverscaledTileID& overscaledTileID,
-                                             const UpdateParameters& parameters) {
-    // If we don't find working tile data, we're just going to load it.
-    if (type == SourceType::Raster) {
-        return std::make_unique<RasterTile>(overscaledTileID, parameters, *tileset);
-    } else if (type == SourceType::Vector) {
-        return std::make_unique<VectorTile>(overscaledTileID, id, parameters, *tileset);
-    } else if (type == SourceType::Annotations) {
-        return std::make_unique<AnnotationTile>(overscaledTileID, id, parameters);
-    } else if (type == SourceType::GeoJSON) {
-        return std::make_unique<GeoJSONTile>(overscaledTileID, id, parameters, geojsonvt.get());
-    } else {
-        Log::Warning(Event::Style, "Source type '%s' is not implemented", Enum<SourceType>::toString(type));
-        return nullptr;
-    }
-}
-
 Tile* Source::getTile(const OverscaledTileID& overscaledTileID) const {
     auto it = tiles.find(overscaledTileID);
     if (it != tiles.end()) {
diff --git a/src/mbgl/style/source.hpp b/src/mbgl/style/source.hpp
index 45feadf2f..51a9ba5c7 100644
--- a/src/mbgl/style/source.hpp
+++ b/src/mbgl/style/source.hpp
@@ -93,12 +93,10 @@ private:
     void onTileError(Tile&, std::exception_ptr) override;
     void onNeedsRepaint() override;
 
-    std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&);
-
-private:
-    std::unique_ptr<const Tileset> tileset;
+    virtual std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&) = 0;
 
 protected:
+    std::unique_ptr<const Tileset> tileset;
     std::unique_ptr<mapbox::geojsonvt::GeoJSONVT> geojsonvt;
 
 private:
diff --git a/src/mbgl/style/sources/geojson_source.cpp b/src/mbgl/style/sources/geojson_source.cpp
index 8a573becf..caedcffcd 100644
--- a/src/mbgl/style/sources/geojson_source.cpp
+++ b/src/mbgl/style/sources/geojson_source.cpp
@@ -1,4 +1,5 @@
 #include <mbgl/style/sources/geojson_source.hpp>
+#include <mbgl/tile/geojson_tile.hpp>
 
 #include <mapbox/geojsonvt.hpp>
 
@@ -14,5 +15,10 @@ GeoJSONSource::GeoJSONSource(std::string id_,
     geojsonvt = std::move(geojsonvt_);
 }
 
+std::unique_ptr<Tile> GeoJSONSource::createTile(const OverscaledTileID& tileID,
+                                                const UpdateParameters& parameters) {
+    return std::make_unique<GeoJSONTile>(tileID, id, parameters, geojsonvt.get());
+}
+
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/sources/geojson_source.hpp b/src/mbgl/style/sources/geojson_source.hpp
index d9f8cb4c6..c9262f22b 100644
--- a/src/mbgl/style/sources/geojson_source.hpp
+++ b/src/mbgl/style/sources/geojson_source.hpp
@@ -12,6 +12,9 @@ public:
                   uint16_t tileSize,
                   std::unique_ptr<Tileset>&&,
                   std::unique_ptr<mapbox::geojsonvt::GeoJSONVT>&&);
+
+private:
+    std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&) final;
 };
 
 } // namespace style
diff --git a/src/mbgl/style/sources/raster_source.cpp b/src/mbgl/style/sources/raster_source.cpp
index 868d3f7f8..de8b24842 100644
--- a/src/mbgl/style/sources/raster_source.cpp
+++ b/src/mbgl/style/sources/raster_source.cpp
@@ -1,4 +1,5 @@
 #include <mbgl/style/sources/raster_source.hpp>
+#include <mbgl/tile/raster_tile.hpp>
 
 namespace mbgl {
 namespace style {
@@ -10,5 +11,10 @@ RasterSource::RasterSource(std::string id_,
     : Source(SourceType::Raster, std::move(id_), std::move(url_), tileSize_, std::move(tileset_)) {
 }
 
+std::unique_ptr<Tile> RasterSource::createTile(const OverscaledTileID& tileID,
+                                               const UpdateParameters& parameters) {
+    return std::make_unique<RasterTile>(tileID, parameters, *tileset);
+}
+
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/sources/raster_source.hpp b/src/mbgl/style/sources/raster_source.hpp
index 0e062c14f..abc203e3c 100644
--- a/src/mbgl/style/sources/raster_source.hpp
+++ b/src/mbgl/style/sources/raster_source.hpp
@@ -11,6 +11,9 @@ public:
                  std::string url,
                  uint16_t tileSize,
                  std::unique_ptr<Tileset>&&);
+
+private:
+    std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&) final;
 };
 
 } // namespace style
diff --git a/src/mbgl/style/sources/vector_source.cpp b/src/mbgl/style/sources/vector_source.cpp
index e6adb9bb9..5cf0a1e18 100644
--- a/src/mbgl/style/sources/vector_source.cpp
+++ b/src/mbgl/style/sources/vector_source.cpp
@@ -1,4 +1,5 @@
 #include <mbgl/style/sources/vector_source.hpp>
+#include <mbgl/tile/vector_tile.hpp>
 
 namespace mbgl {
 namespace style {
@@ -9,5 +10,10 @@ VectorSource::VectorSource(std::string id_,
     : Source(SourceType::Vector, std::move(id_), std::move(url_), util::tileSize, std::move(tileset_)) {
 }
 
+std::unique_ptr<Tile> VectorSource::createTile(const OverscaledTileID& tileID,
+                                               const UpdateParameters& parameters) {
+    return std::make_unique<VectorTile>(tileID, id, parameters, *tileset);
+}
+
 } // namespace style
 } // namespace mbgl
diff --git a/src/mbgl/style/sources/vector_source.hpp b/src/mbgl/style/sources/vector_source.hpp
index 08ab9a461..e98c17ddc 100644
--- a/src/mbgl/style/sources/vector_source.hpp
+++ b/src/mbgl/style/sources/vector_source.hpp
@@ -10,6 +10,9 @@ public:
     VectorSource(std::string id,
                  std::string url,
                  std::unique_ptr<Tileset>&&);
+
+private:
+    std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&) final;
 };
 
 } // namespace style
diff --git a/src/mbgl/tile/raster_tile.cpp b/src/mbgl/tile/raster_tile.cpp
index 5cfd41a16..f23d01a59 100644
--- a/src/mbgl/tile/raster_tile.cpp
+++ b/src/mbgl/tile/raster_tile.cpp
@@ -20,6 +20,8 @@ RasterTile::RasterTile(const OverscaledTileID& id_,
       loader(*this, id_, parameters, tileset) {
 }
 
+RasterTile::~RasterTile() = default;
+
 void RasterTile::setError(std::exception_ptr err) {
     observer->onTileError(*this, err);
 }
diff --git a/src/mbgl/tile/raster_tile.hpp b/src/mbgl/tile/raster_tile.hpp
index 8c0923e7e..32231f7b0 100644
--- a/src/mbgl/tile/raster_tile.hpp
+++ b/src/mbgl/tile/raster_tile.hpp
@@ -21,6 +21,7 @@ public:
     RasterTile(const OverscaledTileID&,
                    const style::UpdateParameters&,
                    const Tileset&);
+    ~RasterTile() final;
 
     void setNecessity(Necessity) final;
 
diff --git a/src/mbgl/tile/tile_loader.hpp b/src/mbgl/tile/tile_loader.hpp
index 1086f4ed3..0d64f647d 100644
--- a/src/mbgl/tile/tile_loader.hpp
+++ b/src/mbgl/tile/tile_loader.hpp
@@ -22,6 +22,7 @@ public:
                const OverscaledTileID&,
                const style::UpdateParameters&,
                const Tileset&);
+    ~TileLoader();
 
     using Necessity = Resource::Necessity;
 
diff --git a/src/mbgl/tile/tile_loader_impl.hpp b/src/mbgl/tile/tile_loader_impl.hpp
index 2e57f2f6f..b987d6ec6 100644
--- a/src/mbgl/tile/tile_loader_impl.hpp
+++ b/src/mbgl/tile/tile_loader_impl.hpp
@@ -43,6 +43,9 @@ TileLoader<T>::TileLoader(T& tile_,
     }
 }
 
+template <typename T>
+TileLoader<T>::~TileLoader() = default;
+
 template <typename T>
 void TileLoader<T>::loadOptional() {
     assert(!request);