diff --git a/gdk/quartz/GdkQuartzNSWindow.c b/gdk/quartz/GdkQuartzNSWindow.c
index 4d68048ce8..c66fea73c8 100644
--- a/gdk/quartz/GdkQuartzNSWindow.c
+++ b/gdk/quartz/GdkQuartzNSWindow.c
@@ -16,6 +16,7 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "config.h"
 #import "GdkQuartzNSWindow.h"
 #include "gdkquartzwindow.h"
 #include "gdkdnd-quartz.h"
diff --git a/gdk/quartz/GdkQuartzView.c b/gdk/quartz/GdkQuartzView.c
index 97c60d051c..7237363f75 100644
--- a/gdk/quartz/GdkQuartzView.c
+++ b/gdk/quartz/GdkQuartzView.c
@@ -17,6 +17,7 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "config.h"
 #import "GdkQuartzView.h"
 #include "gdkquartzwindow.h"
 #include "gdkprivate-quartz.h"
diff --git a/gdk/quartz/gdkdnd-quartz.c b/gdk/quartz/gdkdnd-quartz.c
index 15b6fed319..b9928acd44 100644
--- a/gdk/quartz/gdkdnd-quartz.c
+++ b/gdk/quartz/gdkdnd-quartz.c
@@ -16,6 +16,7 @@
  * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "config.h"
 #include "gdkdnd.h"
 #include "gdkquartzdnd.h"
 #include "gdkprivate-quartz.h"