diff --git a/xkb/XKBAlloc.c b/xkb/XKBAlloc.c
index a6fec50f5..cc85b8f9e 100644
--- a/xkb/XKBAlloc.c
+++ b/xkb/XKBAlloc.c
@@ -28,6 +28,9 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 #ifndef XKB_IN_SERVER
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include <stdio.h>
 #define NEED_REPLIES
 #define NEED_EVENTS
diff --git a/xkb/XKBGAlloc.c b/xkb/XKBGAlloc.c
index 6aa41d06e..a1c0d1be8 100644
--- a/xkb/XKBGAlloc.c
+++ b/xkb/XKBGAlloc.c
@@ -31,6 +31,9 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 #ifndef XKB_IN_SERVER
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include <stdio.h>
 #include "Xlibint.h"
 #include "XKBlibint.h"
diff --git a/xkb/XKBMAlloc.c b/xkb/XKBMAlloc.c
index d1fd14f27..9fe33e7de 100644
--- a/xkb/XKBMAlloc.c
+++ b/xkb/XKBMAlloc.c
@@ -28,6 +28,9 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 #ifndef XKB_IN_SERVER
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include <stdio.h>
 #define NEED_REPLIES
 #define NEED_EVENTS
diff --git a/xkb/XKBMisc.c b/xkb/XKBMisc.c
index afc0dbebd..987c6e33a 100644
--- a/xkb/XKBMisc.c
+++ b/xkb/XKBMisc.c
@@ -28,6 +28,9 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 #ifndef XKB_IN_SERVER
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include <stdio.h>
 #define NEED_REPLIES
 #define NEED_EVENTS