diff --git a/gtk/gtkscalebutton.c b/gtk/gtkscalebutton.c
index e6de42ea95..d1bd058bf4 100644
--- a/gtk/gtkscalebutton.c
+++ b/gtk/gtkscalebutton.c
@@ -57,6 +57,7 @@
 #include "gtktypebuiltins.h"
 #include "gtkintl.h"
 #include "a11y/gtkscalebuttonaccessible.h"
+#include "gtkpopoverprivate.h"
 
 /**
  * SECTION:gtkscalebutton
@@ -356,6 +357,9 @@ gtk_scale_button_init (GtkScaleButton *button)
   gtk_widget_init_template (GTK_WIDGET (button));
   gtk_popover_set_relative_to (GTK_POPOVER (priv->dock), GTK_WIDGET (button));
 
+  /* FIXME: to be removed when compositing over native windows is fixed */
+  _gtk_popover_set_apply_shape (GTK_POPOVER (priv->dock), TRUE);
+
   /* Need a local reference to the adjustment */
   g_object_ref (priv->adjustment);