diff --git a/src/gtk/spinctrl.cpp b/src/gtk/spinctrl.cpp
index c2091178b6..46e8f4860f 100644
--- a/src/gtk/spinctrl.cpp
+++ b/src/gtk/spinctrl.cpp
@@ -22,8 +22,7 @@
 
 #include <math.h>
 
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
+#include "wx/gtk/private.h"
 
 //-----------------------------------------------------------------------------
 // idle system
diff --git a/src/gtk1/spinctrl.cpp b/src/gtk1/spinctrl.cpp
index c2091178b6..46e8f4860f 100644
--- a/src/gtk1/spinctrl.cpp
+++ b/src/gtk1/spinctrl.cpp
@@ -22,8 +22,7 @@
 
 #include <math.h>
 
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
+#include "wx/gtk/private.h"
 
 //-----------------------------------------------------------------------------
 // idle system