diff --git a/src/test/compile-fail/expanded-cfg.rs b/src/test/compile-fail/expanded-cfg.rs
index a15e0548a86..77351f6e4f1 100644
--- a/src/test/compile-fail/expanded-cfg.rs
+++ b/src/test/compile-fail/expanded-cfg.rs
@@ -20,6 +20,9 @@ macro_rules! mac {
             #[cfg_attr(target_thread_local, custom)]
             fn g() {}
         }
+
+        #[cfg(attr)]
+        unconfigured_invocation!();
     }
 }