diff --git a/weboob/applications/radioob/radioob.py b/weboob/applications/radioob/radioob.py
index de7c0c10..cdce2fee 100644
--- a/weboob/applications/radioob/radioob.py
+++ b/weboob/applications/radioob/radioob.py
@@ -83,10 +83,12 @@ class Radioob(ReplApplication):
         if not _id:
             print >>sys.stderr, 'This command takes an argument: %s' % self.get_command_help('play', short=True)
             return 2
-        try:
-            _stream_id = int(_stream_id)
-        except ValueError:
-            _stream_id = 0
+        _stream_id = 0
+        if _stream_id:
+            try:
+                _stream_id = int(_stream_id)
+            except:
+                pass
 
         radio = self.get_object(_id, 'get_radio', ['streams'])
         if not radio: