diff --git a/src/test/run-pass/block-expr-precedence.rs b/src/test/run-pass/block-expr-precedence.rs
index 2164ef25a0ae..3349cfb44551 100644
--- a/src/test/run-pass/block-expr-precedence.rs
+++ b/src/test/run-pass/block-expr-precedence.rs
@@ -1,3 +1,6 @@
+// This test has some extra semis in it that the pretty-printer won't
+// reproduce so we don't want to automatically reformat it
+
 // no-reformat
 
 /*