diff --git a/Source/GlideHQ/tc-1.1+/internal.h b/Source/GlideHQ/tc-1.1+/internal.h
index 28ace4b45..b1924cbef 100644
--- a/Source/GlideHQ/tc-1.1+/internal.h
+++ b/Source/GlideHQ/tc-1.1+/internal.h
@@ -23,6 +23,15 @@
 #ifndef INTERNAL_H_included
 #define INTERNAL_H_included
 
+
+/*****************************************************************************\
+* Texture compression stuff
+\*****************************************************************************/
+#define RADEON
+#define YUV
+#define ARGB
+
+
 /*****************************************************************************\
  * DLL stuff
 \*****************************************************************************/