diff --git a/ChangeLog b/ChangeLog
index ad9fa722ee..fa61269d99 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -24,12 +24,6 @@ Fri Jul 15 17:08:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 	  which may be canceled out by the exponent.
 	  http://twitter.com/kazuho/status/753829998767714305
 
-Fri Jul 15 15:32:13 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* time.c (time_arg): it seems that this function sometimes causes SEGV
-	  on mswin CI, then force to prevent `vtm->subsecx` from GC.  this is
-	  experimental.
-
 Fri Jul 15 09:53:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* enc/unicode/case-folding.rb, tool/enc-unicode.rb: check if
diff --git a/time.c b/time.c
index 2d1ce38120..9f009b5a15 100644
--- a/time.c
+++ b/time.c
@@ -2591,7 +2591,6 @@ time_arg(int argc, VALUE *argv, struct vtm *vtm)
     }
 
     validate_vtm(vtm);
-    RB_GC_GUARD(vtm->subsecx);
 }
 
 static int