diff --git a/src/test_utils.rs b/src/test_utils.rs
index 40867e5850..87e96e16d6 100644
--- a/src/test_utils.rs
+++ b/src/test_utils.rs
@@ -1377,9 +1377,9 @@ impl InnerLogSink {
             }
         }
         if is_error {
-            panic!("Expected an error log.")
+            panic!("Expected an error log {pat:?}.")
         } else {
-            panic!("Expected a warning log.")
+            panic!("Expected a warning log {pat:?}.")
         }
     }