diff --git a/framework/BuildDefines.h b/framework/BuildDefines.h
index 835711f..ce72b7d 100644
--- a/framework/BuildDefines.h
+++ b/framework/BuildDefines.h
@@ -125,6 +125,10 @@ If you have questions concerning this license or the applicable additional terms
 #	endif
 #endif
 
+#ifndef ID_OPENAL_EAX
+#	define ID_OPENAL_EAX 0
+#endif
+
 #ifndef ID_ALLOW_D3XP
 #	if defined( MACOS_X )
 #		define ID_ALLOW_D3XP 0