diff --git a/tests/expected/panic/panic-2018/expected b/tests/expected/panic/panic-2018/expected
index 72637a772604..92a9e47ad8ce 100644
--- a/tests/expected/panic/panic-2018/expected
+++ b/tests/expected/panic/panic-2018/expected
@@ -1,4 +1,4 @@
-Failed Checks: concat! ("Panic: {} code: ", 10), msg
+Failed Checks: concat!("Panic: {} code: ", 10), msg
 Failed Checks: msg
 Failed Checks: explicit panic
 Failed Checks: Panic message
diff --git a/tests/expected/panic/panic-2021/expected b/tests/expected/panic/panic-2021/expected
index 72637a772604..92a9e47ad8ce 100644
--- a/tests/expected/panic/panic-2021/expected
+++ b/tests/expected/panic/panic-2021/expected
@@ -1,4 +1,4 @@
-Failed Checks: concat! ("Panic: {} code: ", 10), msg
+Failed Checks: concat!("Panic: {} code: ", 10), msg
 Failed Checks: msg
 Failed Checks: explicit panic
 Failed Checks: Panic message