diff --git a/ChangeLog b/ChangeLog
index 9adaf44592..e070790837 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Mon Jun  1 21:18:24 2015  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c (gc_mark_children): remove a garbage character
+	  introduced at the last commit.
+
 Mon Jun  1 19:24:42 2015  Koichi Sasada  <ko1@atdot.net>
 
 	* vm_method.c (rb_method_entry_make): do not show warning message
diff --git a/gc.c b/gc.c
index c92fecaff9..eb0a0736b2 100644
--- a/gc.c
+++ b/gc.c
@@ -4315,7 +4315,7 @@ gc_mark_children(rb_objspace_t *objspace, VALUE obj)
 	    rb_bug("T_IMEMO: unreachable");
 	}
     }
-a
+
     gc_mark(objspace, any->as.basic.klass);
 
     switch (BUILTIN_TYPE(obj)) {