diff --git a/common/dga_check.c b/common/dga_check.c
index 683feb3..6d56f77 100644
--- a/common/dga_check.c
+++ b/common/dga_check.c
@@ -31,7 +31,7 @@
 #include <stdlib.h>
 #include <X11/Xlib.h>
 
-#ifdef HAS_DGA
+#if defined(HAS_DGA) && defined(_EXPERIMENTAL_)
 #include <X11/extensions/xf86dga.h>
 #include <X11/extensions/xf86vmode.h>
 #endif