diff --git a/src/graphics/engine/engine.cpp b/src/graphics/engine/engine.cpp
index 309a0f9d..3effebbd 100644
--- a/src/graphics/engine/engine.cpp
+++ b/src/graphics/engine/engine.cpp
@@ -3394,9 +3394,9 @@ void CEngine::DrawCrashSpheres()
 
     SetState(ENG_RSTATE_OPAQUE_COLOR);
 
-    const int LINE_SEGMENTS = 32;
-    const int LONGITUDE_DIVISIONS = 16;
-    const int LATITUDE_DIVISIONS = 8;
+    static const int LINE_SEGMENTS = 32;
+    static const int LONGITUDE_DIVISIONS = 16;
+    static const int LATITUDE_DIVISIONS = 8;
 
     VertexCol line[LINE_SEGMENTS];
     Color color(0.0f, 0.0f, 1.0f);
diff --git a/src/graphics/opengl/glutil.cpp b/src/graphics/opengl/glutil.cpp
index 06135e4e..95c1f24f 100644
--- a/src/graphics/opengl/glutil.cpp
+++ b/src/graphics/opengl/glutil.cpp
@@ -628,7 +628,7 @@ PreparedTextureData PrepareTextureData(ImageData* imageData, TexImgFormat format
 
     if (convert)
     {
-        SDL_PixelFormat format;
+        SDL_PixelFormat format = {};
         format.BytesPerPixel = 4;
         format.BitsPerPixel = 32;
         format.Aloss = format.Bloss = format.Gloss = format.Rloss = 0;
diff --git a/src/graphics/opengl/glutil.h b/src/graphics/opengl/glutil.h
index 6fbb9658..2da4cf20 100644
--- a/src/graphics/opengl/glutil.h
+++ b/src/graphics/opengl/glutil.h
@@ -108,7 +108,7 @@ struct PreparedTextureData
     bool alpha = false;
 };
 
-PreparedTextureData PrepareTextureData(ImageData* data, TexImgFormat format);
+PreparedTextureData PrepareTextureData(ImageData* imageData, TexImgFormat format);
 
 class CGLFrameBufferPixels : public CFrameBufferPixels
 {