diff --git a/tests/source/issue-1278.rs b/tests/source/issue-1278.rs
index e25376561a9..b7e636f1a27 100644
--- a/tests/source/issue-1278.rs
+++ b/tests/source/issue-1278.rs
@@ -1,4 +1,4 @@
-// rustfmt-indent_style = "block"
+// rustfmt-indent_style: Block
 
 #![feature(pub_restricted)]
 
diff --git a/tests/target/issue-1278.rs b/tests/target/issue-1278.rs
index e25376561a9..b7e636f1a27 100644
--- a/tests/target/issue-1278.rs
+++ b/tests/target/issue-1278.rs
@@ -1,4 +1,4 @@
-// rustfmt-indent_style = "block"
+// rustfmt-indent_style: Block
 
 #![feature(pub_restricted)]