diff --git a/harp/config/builders/system.py b/harp/config/builders/system.py
index 2b6a245e..b051144a 100644
--- a/harp/config/builders/system.py
+++ b/harp/config/builders/system.py
@@ -157,7 +157,7 @@ async def abuild(self) -> System:
 
         # Get lazy configuration.
         config = self.configuration
-        logger.info(f"📦 {", ".join(self.applications.keys())}")
+        logger.info(f"📦 {', '.join(self.applications.keys())}")
         for name, app in self.applications.items():
             logger.debug(f'... "{name}" application loaded from "{app.path}"')