diff --git a/src/librustc/diagnostics.rs b/src/librustc/diagnostics.rs
index 2efd43c42163..636d543a071d 100644
--- a/src/librustc/diagnostics.rs
+++ b/src/librustc/diagnostics.rs
@@ -1618,7 +1618,7 @@ fn cookie() -> ! { // error: definition of an unknown language item: `cookie`
 "##,
 
 E0525: r##"
-A closure was used where it didn't implement the expected trait.
+A closure was used but didn't implement the expected trait.
 
 Erroneous code example: