diff --git a/clutter/clutter/clutter-align-constraint.c b/clutter/clutter/clutter-align-constraint.c
index c7ff711b7..ed10ece2e 100644
--- a/clutter/clutter/clutter-align-constraint.c
+++ b/clutter/clutter/clutter-align-constraint.c
@@ -85,7 +85,7 @@ G_DEFINE_TYPE (ClutterAlignConstraint,
 
 static void
 source_position_changed (ClutterActor           *actor,
-                         const ClutterActorBox  *allocation,
+                         GParamSpec             *pspec,
                          ClutterAlignConstraint *align)
 {
   if (align->actor != NULL)
@@ -409,7 +409,7 @@ clutter_align_constraint_set_source (ClutterAlignConstraint *align,
   align->source = source;
   if (align->source != NULL)
     {
-      g_signal_connect (align->source, "allocation-changed",
+      g_signal_connect (align->source, "notify::allocation",
                         G_CALLBACK (source_position_changed),
                         align);
       g_signal_connect (align->source, "destroy",
diff --git a/clutter/clutter/clutter-deform-effect.c b/clutter/clutter/clutter-deform-effect.c
index 5f4de5ac7..a1b7c89bb 100644
--- a/clutter/clutter/clutter-deform-effect.c
+++ b/clutter/clutter/clutter-deform-effect.c
@@ -128,9 +128,9 @@ clutter_deform_effect_deform_vertex (ClutterDeformEffect *effect,
 }
 
 static void
-vbo_invalidate (ClutterActor           *actor,
-                const ClutterActorBox  *allocation,
-                ClutterDeformEffect    *effect)
+vbo_invalidate (ClutterActor        *actor,
+                GParamSpec          *pspec,
+                ClutterDeformEffect *effect)
 {
   effect->priv->is_dirty = TRUE;
 }
@@ -155,7 +155,7 @@ clutter_deform_effect_set_actor (ClutterActorMeta *meta,
    * changes
    */
   if (actor != NULL)
-    priv->allocation_id = g_signal_connect (actor, "allocation-changed",
+    priv->allocation_id = g_signal_connect (actor, "notify::allocation",
                                             G_CALLBACK (vbo_invalidate),
                                             meta);