diff --git a/gtk/gtkcssshadowvalue.c b/gtk/gtkcssshadowvalue.c
index 9ad69b9182..126e9af8f2 100644
--- a/gtk/gtkcssshadowvalue.c
+++ b/gtk/gtkcssshadowvalue.c
@@ -151,11 +151,11 @@ gtk_css_value_shadow_equal (const GtkCssValue *value1,
       const ShadowValue *shadow2 = &value2->shadows[i];
 
       if (shadow1->inset != shadow2->inset ||
-          _gtk_css_value_equal (shadow1->hoffset, shadow2->hoffset) ||
-          _gtk_css_value_equal (shadow1->voffset, shadow2->voffset) ||
-          _gtk_css_value_equal (shadow1->radius, shadow2->radius) ||
-          _gtk_css_value_equal (shadow1->spread, shadow2->spread) ||
-          _gtk_css_value_equal (shadow1->color, shadow2->color))
+          !_gtk_css_value_equal (shadow1->hoffset, shadow2->hoffset) ||
+          !_gtk_css_value_equal (shadow1->voffset, shadow2->voffset) ||
+          !_gtk_css_value_equal (shadow1->radius, shadow2->radius) ||
+          !_gtk_css_value_equal (shadow1->spread, shadow2->spread) ||
+          !_gtk_css_value_equal (shadow1->color, shadow2->color))
         return FALSE;
     }
 
diff --git a/testsuite/reftests/frame-inhibitor.c b/testsuite/reftests/frame-inhibitor.c
index 567dc07ae1..9d699c4224 100644
--- a/testsuite/reftests/frame-inhibitor.c
+++ b/testsuite/reftests/frame-inhibitor.c
@@ -30,6 +30,7 @@ tick_callback_for_1_frame (GtkWidget     *widget,
                            gpointer       unused)
 {
   reftest_uninhibit_snapshot ();
+  gtk_widget_queue_draw (widget);
 
   return G_SOURCE_REMOVE;
 }