diff --git a/Source/Core/VideoCommon/Src/VertexLoader_Color.cpp b/Source/Core/VideoCommon/Src/VertexLoader_Color.cpp
index 637456d982..b16e7e6ee9 100644
--- a/Source/Core/VideoCommon/Src/VertexLoader_Color.cpp
+++ b/Source/Core/VideoCommon/Src/VertexLoader_Color.cpp
@@ -29,7 +29,7 @@
 #define GSHIFT 8
 #define BSHIFT 16
 #define ASHIFT 24
-#define AMASK 24
+#define AMASK 0xFF000000
 
 extern int colIndex;
 extern int colElements[2];