diff --git a/test/compress/collapse_vars.js b/test/compress/collapse_vars.js
index 4ecd1d7f..ed1d8d97 100644
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -4515,5 +4515,5 @@ issue_2891_2: {
         }
         console.log(a);
     }
-    expect_stdout: "PASS"
+    expect_stdout: true
 }