diff --git a/src/runtime/mgclarge.go b/src/runtime/mgclarge.go
index cf5bd9a793..3c2b12fe8e 100644
--- a/src/runtime/mgclarge.go
+++ b/src/runtime/mgclarge.go
@@ -24,7 +24,7 @@
 // removeSpan: which removes a specific span from the treap
 //
 // _mheap.lock must be held when manipulating this data structure.
-//
+
 package runtime
 
 import (