diff --git a/src/gtk-glade/gdk_3Demu.cpp b/src/gtk-glade/gdk_3Demu.cpp
index cbfe46f8e..e979965f7 100644
--- a/src/gtk-glade/gdk_3Demu.cpp
+++ b/src/gtk-glade/gdk_3Demu.cpp
@@ -154,11 +154,11 @@ initialise_gdk_3d( void) {
 }
 
 int
-init_opengl_gdk_3Demu( void) {
+init_opengl_gdk_3Demu( GdkDrawable * drawable) {
   GdkGLConfig *glconfig;
 
   /* create the off screen pixmap */
-  target_pixmap = gdk_pixmap_new ( NULL, 256, 192, 24);
+  target_pixmap = gdk_pixmap_new ( drawable, 256, 192, -1);
 
   if ( target_pixmap == NULL) {
       g_print (_("*** Failed to create pixmap.\n"));
diff --git a/src/gtk-glade/gdk_3Demu.h b/src/gtk-glade/gdk_3Demu.h
index 6d587017c..8a0a0686e 100644
--- a/src/gtk-glade/gdk_3Demu.h
+++ b/src/gtk-glade/gdk_3Demu.h
@@ -27,6 +27,6 @@
  */
 
 int
-init_opengl_gdk_3Demu( void);
+init_opengl_gdk_3Demu( GdkDrawable * drawable);
 
 #endif
diff --git a/src/gtk-glade/main.cpp b/src/gtk-glade/main.cpp
index f48d1f355..612293103 100755
--- a/src/gtk-glade/main.cpp
+++ b/src/gtk-glade/main.cpp
@@ -497,7 +497,7 @@ common_gtk_glade_main( struct configured_features *my_config) {
 #ifdef GTKGLEXT_AVAILABLE
           if ( !use_null_3d) {
             /* setup the gdk 3D emulation */
-            if ( init_opengl_gdk_3Demu()) {
+            if ( init_opengl_gdk_3Demu(GDK_DRAWABLE(pWindow->window))) {
               NDS_3D_SetDriver(1);
 
               if (!gpu3D->NDS_3D_Init()) {
diff --git a/src/gtk/gdk_3Demu.cpp b/src/gtk/gdk_3Demu.cpp
index d5a936152..f914a3eba 100644
--- a/src/gtk/gdk_3Demu.cpp
+++ b/src/gtk/gdk_3Demu.cpp
@@ -151,11 +151,11 @@ _oglrender_init( void) {
 }
 
 int
-init_opengl_gdk_3Demu( void) {
+init_opengl_gdk_3Demu( GdkDrawable * drawable) {
   GdkGLConfig *glconfig;
 
   /* create the off screen pixmap */
-  target_pixmap = gdk_pixmap_new ( NULL, 256, 192, 24);
+  target_pixmap = gdk_pixmap_new ( drawable, 256, 192, -1);
 
   if ( target_pixmap == NULL) {
       g_print ("*** Failed to create pixmap.\n");
diff --git a/src/gtk/gdk_3Demu.h b/src/gtk/gdk_3Demu.h
index 0015ba9a2..9b2e881fa 100644
--- a/src/gtk/gdk_3Demu.h
+++ b/src/gtk/gdk_3Demu.h
@@ -27,6 +27,6 @@
  */
 
 int
-init_opengl_gdk_3Demu( void);
+init_opengl_gdk_3Demu( GdkDrawable * drawable);
 
 #endif
diff --git a/src/gtk/main.cpp b/src/gtk/main.cpp
index 9f7ede253..2967c5bb0 100644
--- a/src/gtk/main.cpp
+++ b/src/gtk/main.cpp
@@ -1878,7 +1878,7 @@ common_gtk_main( struct configured_features *my_config)
 #ifdef GTKGLEXT_AVAILABLE
           if ( !use_null_3d) {
             /* setup the gdk 3D emulation */
-            if ( init_opengl_gdk_3Demu()) {
+            if ( init_opengl_gdk_3Demu(GDK_DRAWABLE(pWindow->window))) {
               NDS_3D_SetDriver ( 1);
 
               if (!gpu3D->NDS_3D_Init ()) {