diff --git a/string.c b/string.c
index 70419a88c2..8ebe44b755 100644
--- a/string.c
+++ b/string.c
@@ -3603,7 +3603,7 @@ rb_str_freeze(VALUE str)
  * Otherwise returns <tt>self.dup</tt>, which is not frozen.
  *
  * Related: see {Freezing/Unfreezing}[rdoc-ref:String@Freezing-2FUnfreezing].
-s */
+ */
 static VALUE
 str_uplus(VALUE str)
 {