diff --git a/src/test/parse-fail/parenthesized-box-expr-message.rs b/src/test/parse-fail/parenthesized-box-expr-message.rs
index 09d32a71dea4..4c32d2f041e3 100644
--- a/src/test/parse-fail/parenthesized-box-expr-message.rs
+++ b/src/test/parse-fail/parenthesized-box-expr-message.rs
@@ -12,7 +12,7 @@
 
 fn main() {
     box (1 + 1)
-    //~^ HELP try using `box()` instead:
-    //~| SUGGESTION box() (1 + 1)
+    //~^ HELP try using `box ()` instead:
+    //~| SUGGESTION box () (1 + 1)
     ; //~ ERROR expected expression, found `;`
 }