4 files changed, 5 insertions, 5 deletions
diff --git a/src/mbgl/tile/geometry_tile.cpp b/src/mbgl/tile/geometry_tile.cpp
index 6c4987307b..9165c03267 100644
--- a/src/mbgl/tile/geometry_tile.cpp
+++ b/src/mbgl/tile/geometry_tile.cpp
@@ -156,7 +156,7 @@ void GeometryTile::getGlyphs(GlyphDependencies glyphDependencies) {
     glyphManager.getGlyphs(*this, std::move(glyphDependencies));
 }
 
-void GeometryTile::onImagesAvailable(ImageMap images, ImageMap patterns, std::unordered_map<std::string, uint32_t> versionMap, uint64_t imageCorrelationID) {
+void GeometryTile::onImagesAvailable(ImageMap images, ImageMap patterns, ImageVersionMap versionMap, uint64_t imageCorrelationID) {
     worker.self().invoke(&GeometryTileWorker::onImagesAvailable, std::move(images), std::move(patterns), std::move(versionMap), imageCorrelationID);
 }
 
diff --git a/src/mbgl/tile/geometry_tile.hpp b/src/mbgl/tile/geometry_tile.hpp
index 9ecc8b5863..53a8910c27 100644
--- a/src/mbgl/tile/geometry_tile.hpp
+++ b/src/mbgl/tile/geometry_tile.hpp
@@ -37,7 +37,7 @@ public:
     void setShowCollisionBoxes(const bool showCollisionBoxes) override;
 
     void onGlyphsAvailable(GlyphMap) override;
-    void onImagesAvailable(ImageMap, ImageMap, std::unordered_map<std::string,uint32_t> versionMap, uint64_t imageCorrelationID) override;
+    void onImagesAvailable(ImageMap, ImageMap, ImageVersionMap versionMap, uint64_t imageCorrelationID) override;
     
     void getGlyphs(GlyphDependencies);
     void getImages(ImageRequestPair);
diff --git a/src/mbgl/tile/geometry_tile_worker.cpp b/src/mbgl/tile/geometry_tile_worker.cpp
index ebd97f60d0..0b703cd68b 100644
--- a/src/mbgl/tile/geometry_tile_worker.cpp
+++ b/src/mbgl/tile/geometry_tile_worker.cpp
@@ -278,7 +278,7 @@ void GeometryTileWorker::onGlyphsAvailable(GlyphMap newGlyphMap) {
     symbolDependenciesChanged();
 }
 
-void GeometryTileWorker::onImagesAvailable(ImageMap newIconMap, ImageMap newPatternMap, std::unordered_map<std::string, uint32_t> newVersionMap, uint64_t imageCorrelationID_) {
+void GeometryTileWorker::onImagesAvailable(ImageMap newIconMap, ImageMap newPatternMap, ImageVersionMap newVersionMap, uint64_t imageCorrelationID_) {
     if (imageCorrelationID != imageCorrelationID_) {
         return; // Ignore outdated image request replies.
     }
diff --git a/src/mbgl/tile/geometry_tile_worker.hpp b/src/mbgl/tile/geometry_tile_worker.hpp
index 0eea6819e3..706bac0154 100644
--- a/src/mbgl/tile/geometry_tile_worker.hpp
+++ b/src/mbgl/tile/geometry_tile_worker.hpp
@@ -44,7 +44,7 @@ public:
     void setShowCollisionBoxes(bool showCollisionBoxes_, uint64_t correlationID_);
     
     void onGlyphsAvailable(GlyphMap glyphs);
-    void onImagesAvailable(ImageMap icons, ImageMap patterns, std::unordered_map<std::string, uint32_t> versionMap, uint64_t imageCorrelationID);
+    void onImagesAvailable(ImageMap icons, ImageMap patterns, ImageVersionMap versionMap, uint64_t imageCorrelationID);
 
 private:
     void coalesced();
@@ -96,7 +96,7 @@ private:
     GlyphMap glyphMap;
     ImageMap imageMap;
     ImageMap patternMap;
-    std::unordered_map<std::string, uint32_t> versionMap;
+    ImageVersionMap versionMap;
     
     bool showCollisionBoxes;
     bool firstLoad = true;