diff --git a/src/macros.rs b/src/macros.rs
index 5adba6c..0065ee6 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -6,7 +6,7 @@ macro_rules! generate_panic
 {
    ($($arg: tt)+) =>
    ({
-      panic!(::std::fmt::format(format_args!($($arg)+)));
+      panic!($($arg)+);
    })
 }