diff --git a/src/audio/windx5/directx.h b/src/audio/windx5/directx.h
index e482301c6..5f339f2de 100644
--- a/src/audio/windx5/directx.h
+++ b/src/audio/windx5/directx.h
@@ -2,10 +2,6 @@
 #ifndef _directx_h
 #define _directx_h
 
-#ifdef __GNUC__
-#define NONAMELESSUNION
-#endif
-
 /* Include all of the DirectX 5.0 headers and adds any necessary tweaks */
 
 #define WIN32_LEAN_AND_MEAN
diff --git a/src/video/windx5/directx.h b/src/video/windx5/directx.h
index b3b29f7e3..c7f536530 100644
--- a/src/video/windx5/directx.h
+++ b/src/video/windx5/directx.h
@@ -2,10 +2,6 @@
 #ifndef _directx_h
 #define _directx_h
 
-#ifdef __GNUC__
-#define NONAMELESSUNION
-#endif
-
 /* Include all of the DirectX 5.0 headers and adds any necessary tweaks */
 
 #define WIN32_LEAN_AND_MEAN