diff --git a/gtk/gtkcssanimatedstyle.c b/gtk/gtkcssanimatedstyle.c
index 04337e54c2..9847449f08 100644
--- a/gtk/gtkcssanimatedstyle.c
+++ b/gtk/gtkcssanimatedstyle.c
@@ -464,7 +464,7 @@ gtk_css_animated_style_new_advance (GtkCssAnimatedStyle *source,
   gtk_internal_return_val_if_fail (GTK_IS_CSS_ANIMATED_STYLE (source), NULL);
   gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (base), NULL);
   
-  if (timestamp == 0)
+  if (timestamp == 0 || timestamp == source->current_time)
     return g_object_ref (source->style);
 
   gtk_internal_return_val_if_fail (timestamp > source->current_time, NULL);