diff --git a/src/test/compile-fail/coerce-unsafe-to-closure.rs b/src/test/compile-fail/coerce-unsafe-to-closure.rs
index d9fbc08b321..fe7635f065c 100644
--- a/src/test/compile-fail/coerce-unsafe-to-closure.rs
+++ b/src/test/compile-fail/coerce-unsafe-to-closure.rs
@@ -10,5 +10,5 @@
 
 fn main() {
     let x: Option<&[u8]> = Some("foo").map(std::mem::transmute);
-    //~^ ERROR: mismatched types
+    //~^ ERROR: is not implemented for the type
 }