diff --git a/clutter/clutter-alpha.c b/clutter/clutter-alpha.c
index e65bf0954..262837333 100644
--- a/clutter/clutter-alpha.c
+++ b/clutter/clutter-alpha.c
@@ -149,7 +149,7 @@ static GParamSpec *obj_props[PROP_LAST];
 
 static void
 timeline_new_frame_cb (ClutterTimeline *timeline,
-                       guint            current_frame_num,
+                       guint            msecs,
                        ClutterAlpha    *alpha)
 {
   ClutterAlphaPrivate *priv = alpha->priv;
diff --git a/clutter/clutter-timeline.h b/clutter/clutter-timeline.h
index 4cb2fa4a8..95f2bfa9f 100644
--- a/clutter/clutter-timeline.h
+++ b/clutter/clutter-timeline.h
@@ -96,7 +96,7 @@ struct _ClutterTimelineClass
   void (*paused)         (ClutterTimeline *timeline);
   
   void (*new_frame)      (ClutterTimeline *timeline,
-		          gint             frame_num);
+		          gint             msecs);
 
   void (*marker_reached) (ClutterTimeline *timeline,
                           const gchar     *marker_name,
diff --git a/tests/conform/test-timeline-rewind.c b/tests/conform/test-timeline-rewind.c
index 888affbb4..f9dbf91c9 100644
--- a/tests/conform/test-timeline-rewind.c
+++ b/tests/conform/test-timeline-rewind.c
@@ -35,11 +35,9 @@ watchdog_timeout (TestState *state)
 
 static void
 new_frame_cb (ClutterTimeline *timeline,
-              gint frame_num,
+              gint elapsed_time,
               TestState *state)
 {
-  gint elapsed_time = clutter_timeline_get_elapsed_time (timeline);
-
   if (elapsed_time == TEST_TIMELINE_DURATION)
     {
       g_test_message ("new-frame signal received (end of timeline)");