diff --git a/src/graphics/StdPNG.cpp b/src/graphics/StdPNG.cpp
index d1428a4ef..bb05e1c7e 100644
--- a/src/graphics/StdPNG.cpp
+++ b/src/graphics/StdPNG.cpp
@@ -225,7 +225,7 @@ bool CPNGFile::SetPix(int iX, int iY, DWORD dwValue)
 		pPix[2] = GetRedValue(dwValue);
 		return true;
 	case PNG_COLOR_TYPE_RGB_ALPHA: // RGBA: simply set in mem
-		*(unsigned long *) pPix = dwValue;
+		*(DWORD *) pPix = dwValue;
 		return true;
 	}
 	return false;