diff --git a/gtk/gtkcontainer.c b/gtk/gtkcontainer.c
index 55008fd470..229fcf6e1f 100644
--- a/gtk/gtkcontainer.c
+++ b/gtk/gtkcontainer.c
@@ -45,6 +45,7 @@
 #include "gtksizerequest.h"
 #include "gtkwidgetprivate.h"
 #include "gtkwindow.h"
+#include "gtkassistant.h"
 #include "gtkintl.h"
 #include "a11y/gtkcontaineraccessible.h"
 
@@ -1531,7 +1532,7 @@ gtk_container_remove (GtkContainer *container,
 {
   g_return_if_fail (GTK_IS_CONTAINER (container));
   g_return_if_fail (GTK_IS_WIDGET (widget));
-  g_return_if_fail (gtk_widget_get_parent (widget) == GTK_WIDGET (container));
+  g_return_if_fail (gtk_widget_get_parent (widget) == GTK_WIDGET (container) || GTK_IS_ASSISTANT (container));
 
   g_signal_emit (container, container_signals[REMOVE], 0, widget);
 }