diff --git a/glx/extension_string.c b/glx/extension_string.c
index e5ba590289..0b3db576da 100644
--- a/glx/extension_string.c
+++ b/glx/extension_string.c
@@ -33,6 +33,8 @@
 
 #include <dix-config.h>
 
+#include "include/extinit.h"
+
 #include "extension_string.h"
 #include "opaque.h"
 
diff --git a/glx/glxscreens.c b/glx/glxscreens.c
index 4c77b9fa3d..e9e04126eb 100644
--- a/glx/glxscreens.c
+++ b/glx/glxscreens.c
@@ -36,6 +36,7 @@
 #include <GL/glxtokens.h>
 
 #include "dix/colormap_priv.h"
+#include "include/extinit.h"
 
 #include <windowstr.h>
 #include <os.h>