diff --git a/os/src/task/mod.rs b/os/src/task/mod.rs
index b05485f2..f3b3f802 100644
--- a/os/src/task/mod.rs
+++ b/os/src/task/mod.rs
@@ -94,7 +94,7 @@ impl TaskManager {
                 );
             }
         } else {
-            panic!("[kernel] All applications completed!");
+            panic!("All applications completed!");
         }
     }
 }