diff --git a/apps/pulsegen/main.py b/apps/pulsegen/main.py
index b373325..11b084a 100644
--- a/apps/pulsegen/main.py
+++ b/apps/pulsegen/main.py
@@ -83,7 +83,7 @@ async def mqtt_worker(shutdown_event: asyncio.Event) -> None:
     # Topics to subscribe to
     subscribe_topics = [
         "pulsegen/command/+/+",
-        "dt1/di/+
+        "dt1/di/+"
     ]
     
     reconnect_interval = 5  # seconds