diff --git a/src/mbgl/map/tile_parser.cpp b/src/mbgl/map/tile_parser.cpp
index 201e6187a..86517da42 100644
--- a/src/mbgl/map/tile_parser.cpp
+++ b/src/mbgl/map/tile_parser.cpp
@@ -8,7 +8,6 @@
 #include <mbgl/renderer/line_bucket.hpp>
 #include <mbgl/renderer/symbol_bucket.hpp>
 #include <mbgl/util/constants.hpp>
-#include <mbgl/text/collision.hpp>
 #include <mbgl/util/std.hpp>
 #include <mbgl/style/style.hpp>
 
@@ -35,10 +34,8 @@ TileParser::TileParser(const GeometryTile& geometryTile_,
       glyphStore(glyphStore_),
       spriteAtlas(spriteAtlas_),
       sprite(sprite_),
-      collision(util::make_unique<Collision>(tile.id.z, 4096, tile.source.tile_size, tile.depth)),
       partialParse(false) {
     assert(sprite);
-    assert(collision);
 }
 
 bool TileParser::obsolete() const {
@@ -196,7 +193,7 @@ std::unique_ptr<Bucket> TileParser::createSymbolBucket(const GeometryTileLayer&
         return nullptr;
     }
 
-    auto bucket = util::make_unique<SymbolBucket>(*collision);
+    auto bucket = util::make_unique<SymbolBucket>(*tile.getCollision());
 
     const float z = tile.id.z;
     auto& layout = bucket->layout;
diff --git a/src/mbgl/map/tile_parser.hpp b/src/mbgl/map/tile_parser.hpp
index 18184e27a..67150bcd4 100644
--- a/src/mbgl/map/tile_parser.hpp
+++ b/src/mbgl/map/tile_parser.hpp
@@ -29,7 +29,6 @@ class StyleLayoutRaster;
 class StyleLayoutLine;
 class StyleLayoutSymbol;
 class VectorTileData;
-class Collision;
 
 class TileParser : private util::noncopyable {
 public:
@@ -69,7 +68,6 @@ private:
     SpriteAtlas& spriteAtlas;
     util::ptr<Sprite> sprite;
 
-    std::unique_ptr<Collision> collision;
     bool partialParse;
 };
 
diff --git a/src/mbgl/map/vector_tile_data.cpp b/src/mbgl/map/vector_tile_data.cpp
index 8f5138b58..263ad52b9 100644
--- a/src/mbgl/map/vector_tile_data.cpp
+++ b/src/mbgl/map/vector_tile_data.cpp
@@ -6,6 +6,7 @@
 #include <mbgl/map/source.hpp>
 #include <mbgl/geometry/glyph_atlas.hpp>
 #include <mbgl/platform/log.hpp>
+#include <mbgl/text/collision.hpp>
 #include <mbgl/util/pbf.hpp>
 
 using namespace mbgl;
@@ -19,12 +20,13 @@ VectorTileData::VectorTileData(const TileID& id_,
                                util::ptr<Sprite> sprite_,
                                const SourceInfo& source_)
     : TileData(id_, source_),
+      depth(id_.z >= source_.max_zoom ? mapMaxZoom - id_.z : 1),
       glyphAtlas(glyphAtlas_),
       glyphStore(glyphStore_),
       spriteAtlas(spriteAtlas_),
       sprite(sprite_),
       style(style_),
-      depth(id.z >= source.max_zoom ? mapMaxZoom - id.z : 1) {
+      collision(util::make_unique<Collision>(id_.z, 4096, source_.tile_size, depth)) {
 }
 
 VectorTileData::~VectorTileData() {
@@ -91,3 +93,11 @@ void VectorTileData::setBucket(StyleLayer const& layer, std::unique_ptr<Bucket>
 
     buckets[layer.bucket->name] = std::move(bucket);
 }
+
+void VectorTileData::setState(const State& state_) {
+    TileData::setState(state_);
+
+    if (isImmutable()) {
+        collision.reset();
+    }
+}
diff --git a/src/mbgl/map/vector_tile_data.hpp b/src/mbgl/map/vector_tile_data.hpp
index 146bc9322..5fe351ca0 100644
--- a/src/mbgl/map/vector_tile_data.hpp
+++ b/src/mbgl/map/vector_tile_data.hpp
@@ -16,6 +16,7 @@
 namespace mbgl {
 
 class Bucket;
+class Collision;
 class Painter;
 class SourceInfo;
 class StyleLayer;
@@ -45,6 +46,14 @@ public:
 
     void setBucket(StyleLayer const &layer_desc, std::unique_ptr<Bucket> bucket);
 
+    void setState(const State& state) override;
+
+    inline Collision* getCollision() const {
+        return collision.get();
+    }
+
+    const float depth;
+
 protected:
     // Holds the actual geometries in this tile.
     FillVertexBuffer fillVertexBuffer;
@@ -69,8 +78,7 @@ private:
     std::unordered_map<std::string, std::unique_ptr<Bucket>> buckets;
     mutable std::mutex bucketsMutex;
 
-public:
-    const float depth;
+    std::unique_ptr<Collision> collision;
 };
 
 }