diff --git a/lib/gst/clapper/gstclapper.c b/lib/gst/clapper/gstclapper.c
index d0fb036c..6619ca50 100644
--- a/lib/gst/clapper/gstclapper.c
+++ b/lib/gst/clapper/gstclapper.c
@@ -1618,7 +1618,7 @@ static void
 emit_duration_changed (GstClapper * self, GstClockTime duration)
 {
   if (self->cached_duration == duration
-      || self->cached_duration / GST_MSECOND == duration / GST_MSECOND)
+      || self->cached_duration / (250 * GST_MSECOND) == duration / (250 * GST_MSECOND))
     return;
 
   GST_DEBUG_OBJECT (self, "Duration changed %" GST_TIME_FORMAT,