diff --git a/ChangeLog b/ChangeLog
index 0c549373cc..25bf9424fd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sat Oct 11 14:57:08 2014  Eric Wong  <e@80x24.org>
+
+	* string.c (rb_str_intern): remove unnecessary RB_GC_GUARD
+
 Sat Oct 11 13:47:13 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* parse.y (remove_duplicate_keys): remove duplicate literal keys,
diff --git a/string.c b/string.c
index fc6fe5942f..6e50b8ef2e 100644
--- a/string.c
+++ b/string.c
@@ -7549,9 +7549,8 @@ rb_str_crypt(VALUE str, VALUE salt)
 
 
 VALUE
-rb_str_intern(VALUE s)
+rb_str_intern(VALUE str)
 {
-    VALUE str = RB_GC_GUARD(s);
     ID id;
 
     id = rb_intern_str(str);