diff --git a/src/game/MarkImage.h b/src/game/MarkImage.h
index 380d281..57f1172 100644
--- a/src/game/MarkImage.h
+++ b/src/game/MarkImage.h
@@ -3,7 +3,7 @@
 
 #include "minilzo.h"
 
-typedef unsigned long Pixel;
+typedef uint32_t Pixel;
 
 struct SGuildMark
 {
@@ -102,7 +102,7 @@ class CGuildMarkImage
 		void	BuildAllBlocks();
 
 		SGuildMarkBlock	m_aakBlock[BLOCK_ROW_COUNT][BLOCK_COL_COUNT];
-		Pixel m_apxImage[WIDTH * HEIGHT * sizeof(Pixel)];
+		Pixel m_apxImage[WIDTH * HEIGHT];
 };
 
 #endif