6 files changed, 10 insertions, 6 deletions
diff --git a/src/mbgl/style/source.cpp b/src/mbgl/style/source.cpp
index 21fb7fee36..ca0943918b 100644
--- a/src/mbgl/style/source.cpp
+++ b/src/mbgl/style/source.cpp
@@ -32,10 +32,9 @@ namespace style {
 
 static SourceObserver nullObserver;
 
-Source::Source(SourceType type_, std::string id_, uint16_t tileSize_)
+Source::Source(SourceType type_, std::string id_)
     : type(type_),
       id(std::move(id_)),
-      tileSize(tileSize_),
       observer(&nullObserver) {
 }
 
@@ -94,6 +93,7 @@ bool Source::update(const UpdateParameters& parameters) {
         return allTilesUpdated;
     }
 
+    const uint16_t tileSize = getTileSize();
     const Range<uint8_t> zoomRange = getZoomRange();
 
     // Determine the overzooming/underzooming amounts and required tiles.
diff --git a/src/mbgl/style/source.hpp b/src/mbgl/style/source.hpp
index 99d634a887..575297e326 100644
--- a/src/mbgl/style/source.hpp
+++ b/src/mbgl/style/source.hpp
@@ -32,7 +32,7 @@ class SourceObserver;
 
 class Source : public TileObserver, private util::noncopyable {
 public:
-    Source(SourceType, std::string id, uint16_t tileSize);
+    Source(SourceType, std::string id);
     ~Source() override;
 
     bool loaded = false;
@@ -68,7 +68,6 @@ public:
 
     const SourceType type;
     const std::string id;
-    uint16_t tileSize = util::tileSize;
     bool enabled = false;
 
 private:
@@ -77,6 +76,7 @@ private:
     void onTileError(Tile&, std::exception_ptr) override;
     void onNeedsRepaint() override;
 
+    virtual uint16_t getTileSize() const = 0;
     virtual Range<uint8_t> getZoomRange() = 0;
     virtual std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&) = 0;
 
diff --git a/src/mbgl/style/sources/geojson_source.cpp b/src/mbgl/style/sources/geojson_source.cpp
index 7daf148291..01089f2eec 100644
--- a/src/mbgl/style/sources/geojson_source.cpp
+++ b/src/mbgl/style/sources/geojson_source.cpp
@@ -63,7 +63,7 @@ std::unique_ptr<GeoJSONSource> GeoJSONSource::parse(const std::string& id,
 GeoJSONSource::GeoJSONSource(std::string id_,
                              std::string url_,
                              std::unique_ptr<mapbox::geojsonvt::GeoJSONVT>&& geojsonvt_)
-    : Source(SourceType::GeoJSON, std::move(id_), util::tileSize),
+    : Source(SourceType::GeoJSON, std::move(id_)),
       url(url_),
       geojsonvt(std::move(geojsonvt_)) {
 }
diff --git a/src/mbgl/style/sources/geojson_source.hpp b/src/mbgl/style/sources/geojson_source.hpp
index 996dac3aca..00d245c878 100644
--- a/src/mbgl/style/sources/geojson_source.hpp
+++ b/src/mbgl/style/sources/geojson_source.hpp
@@ -31,6 +31,7 @@ public:
     const std::string& getURL() const { return url; }
 
 private:
+    uint16_t getTileSize() const final { return util::tileSize; }
     Range<uint8_t> getZoomRange() final;
     std::unique_ptr<Tile> createTile(const OverscaledTileID&, const UpdateParameters&) final;
 
diff --git a/src/mbgl/style/tile_source.cpp b/src/mbgl/style/tile_source.cpp
index 29cbcc7226..a4deb17c4f 100644
--- a/src/mbgl/style/tile_source.cpp
+++ b/src/mbgl/style/tile_source.cpp
@@ -12,7 +12,8 @@ TileSource::TileSource(SourceType type_,
                        std::string url_,
                        uint16_t tileSize_,
                        std::unique_ptr<Tileset>&& tileset_)
-    : Source(type_, std::move(id_), tileSize_),
+    : Source(type_, std::move(id_)),
+      tileSize(tileSize_),
       url(std::move(url_)),
       tileset(std::move(tileset_)) {
 }
diff --git a/src/mbgl/style/tile_source.hpp b/src/mbgl/style/tile_source.hpp
index b001d174f6..bc97713a04 100644
--- a/src/mbgl/style/tile_source.hpp
+++ b/src/mbgl/style/tile_source.hpp
@@ -25,11 +25,13 @@ public:
     void load(FileSource&) final;
 
     const std::string& getURL() const { return url; }
+    uint16_t getTileSize() const final { return tileSize; }
     const Tileset* getTileset() const { return tileset.get(); }
 
 protected:
     Range<uint8_t> getZoomRange() final;
 
+    const uint16_t tileSize;
     const std::string url;
     std::unique_ptr<const Tileset> tileset;
     std::unique_ptr<AsyncRequest> req;