diff --git a/files/shaders/alpha.glsl b/files/shaders/alpha.glsl
index 9dee7bd314..0c69df0ab2 100644
--- a/files/shaders/alpha.glsl
+++ b/files/shaders/alpha.glsl
@@ -1,12 +1,12 @@
 
-#define FUNC_NEVER                          0x0200
-#define FUNC_LESS                           0x0201
-#define FUNC_EQUAL                          0x0202
-#define FUNC_LEQUAL                         0x0203
-#define FUNC_GREATER                        0x0204
-#define FUNC_NOTEQUAL                       0x0205
-#define FUNC_GEQUAL                         0x0206
-#define FUNC_ALWAYS                         0x0207
+#define FUNC_NEVER                          512 // 0x0200
+#define FUNC_LESS                           513 // 0x0201
+#define FUNC_EQUAL                          514 // 0x0202
+#define FUNC_LEQUAL                         515 // 0x0203
+#define FUNC_GREATER                        516 // 0x0204
+#define FUNC_NOTEQUAL                       517 // 0x0205
+#define FUNC_GEQUAL                         518 // 0x0206
+#define FUNC_ALWAYS                         519 // 0x0207
 
 #if @alphaFunc != FUNC_ALWAYS && @alphaFunc != FUNC_NEVER
 uniform float alphaRef;