2 files changed, 2 insertions, 2 deletions
diff --git a/src/render/sdl2graphics.h b/src/render/sdl2graphics.h
index 15692bca9..9f604d9b5 100644
--- a/src/render/sdl2graphics.h
+++ b/src/render/sdl2graphics.h
@@ -204,7 +204,7 @@ class SDLGraphics final : public Graphics
     protected:
         uint32_t mRendererFlags;
         uint32_t mOldPixel;
-        int mOldAlpha;
+        unsigned int mOldAlpha;
 
     private:
         void inline calcImageRect(ImageVertexes *const vert,
diff --git a/src/render/sdl2softwaregraphics.h b/src/render/sdl2softwaregraphics.h
index 265c9349d..6ef750dbd 100644
--- a/src/render/sdl2softwaregraphics.h
+++ b/src/render/sdl2softwaregraphics.h
@@ -173,7 +173,7 @@ class SDL2SoftwareGraphics final : public Graphics
         uint32_t mRendererFlags;
         SDL_Surface *mSurface;
         uint32_t mOldPixel;
-        int mOldAlpha;
+        unsigned int mOldAlpha;
 
     private:
         void inline calcImageRect(ImageVertexes *const vert,