diff --git a/gst/rtsp/gstrtspsrc.c b/gst/rtsp/gstrtspsrc.c
index 76b98e22a7..9f806ec83d 100644
--- a/gst/rtsp/gstrtspsrc.c
+++ b/gst/rtsp/gstrtspsrc.c
@@ -1108,10 +1108,8 @@ gst_rtspsrc_set_property (GObject * object, guint prop_id, const GValue * value,
       const gchar *str;
 
       str = g_value_get_string (value);
-      if (str) {
-        sscanf (str, "%u-%u",
-            &rtspsrc->client_port_range.min, &rtspsrc->client_port_range.max);
-      } else {
+      if (sscanf (str, "%u-%u", &rtspsrc->client_port_range.min,
+              &rtspsrc->client_port_range.max) != 2) {
         rtspsrc->client_port_range.min = 0;
         rtspsrc->client_port_range.max = 0;
       }