diff --git a/src/node_map.cpp b/src/node_map.cpp
index d8b3d3e70..a493e3020 100644
--- a/src/node_map.cpp
+++ b/src/node_map.cpp
@@ -250,8 +250,9 @@ void NodeMap::renderFinished() {
             [](char *, void *hint) {
                 delete reinterpret_cast<const mbgl::StillImage *>(hint);
             },
-            const_cast<mbgl::StillImage *>(img.release())
+            const_cast<mbgl::StillImage *>(img.get())
         );
+        img.release();
 
         result->Set(NanNew("pixels"), pixels);
 
diff --git a/vendor/mbgl b/vendor/mbgl
index a43d2f824..79422fefa 160000
--- a/vendor/mbgl
+++ b/vendor/mbgl
@@ -1 +1 @@
-Subproject commit a43d2f824dcb50eeb35775cbe7d656ff607bf4eb
+Subproject commit 79422fefa3af657a0f004fc924a84f30cf1aeea6