diff --git a/src/frontend/ContentGfxCache.hpp b/src/frontend/ContentGfxCache.hpp
index 739d6c1d..cb5e2ad7 100644
--- a/src/frontend/ContentGfxCache.hpp
+++ b/src/frontend/ContentGfxCache.hpp
@@ -11,7 +11,7 @@
 class Content;
 class Assets;
 class Atlas;
-struct Block;
+class Block;
 struct UVRegion;
 struct GraphicsSettings;
 
diff --git a/src/graphics/render/Decorator.hpp b/src/graphics/render/Decorator.hpp
index fbc196aa..422f6f77 100644
--- a/src/graphics/render/Decorator.hpp
+++ b/src/graphics/render/Decorator.hpp
@@ -14,7 +14,7 @@ class Chunks;
 class Camera;
 class Assets;
 class Player;
-struct Block;
+class Block;
 class Engine;
 class LevelController;
 class WorldRenderer;
diff --git a/src/graphics/render/ModelsGenerator.hpp b/src/graphics/render/ModelsGenerator.hpp
index 52bc56d0..c4665118 100644
--- a/src/graphics/render/ModelsGenerator.hpp
+++ b/src/graphics/render/ModelsGenerator.hpp
@@ -7,7 +7,7 @@
 struct ItemDef;
 class Assets;
 class Content;
-struct Block;
+class Block;
 
 class ModelsGenerator {
 public: