diff --git a/play_group.py b/play_group.py
index dcd3e77..6b34765 100755
--- a/play_group.py
+++ b/play_group.py
@@ -77,7 +77,7 @@ class playIPSC(IPSC):
                     return
             '''
             
-            if (_ts == 0 and _dst_group in trigger_groups_1) or (_ts == 1 and _dst_group in trigger_groups_2):
+            if (_ts == 0 and _dst_group not in trigger_groups_1) or (_ts == 1 and _dst_group not in trigger_groups_2):
                 return
             
             logger.info('(Event ID: %s) Playback triggered from TS %s, TGID %s', self.event_id, (_ts +1), int_id(_dst_group))