diff --git a/ChangeLog b/ChangeLog
index a22376fa22..2e4da12577 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Oct  9 14:36:11 2012  Koichi Sasada  <ko1@atdot.net>
+
+	* iseq.c (iseq_free): fix memory leak.
+	  rb_iseq_t::callinfo_entries should be freed.
+
 Tue Oct  9 14:28:18 2012  Koichi Sasada  <ko1@atdot.net>
 
 	* vm_core.h (rb_call_info_t): add new type `rb_call_inf_t'.
diff --git a/iseq.c b/iseq.c
index 5bfad431d8..58f5905f33 100644
--- a/iseq.c
+++ b/iseq.c
@@ -84,6 +84,7 @@ iseq_free(void *ptr)
 	    RUBY_FREE_UNLESS_NULL(iseq->line_info_table);
 	    RUBY_FREE_UNLESS_NULL(iseq->local_table);
 	    RUBY_FREE_UNLESS_NULL(iseq->ic_entries);
+	    RUBY_FREE_UNLESS_NULL(iseq->callinfo_entries);
 	    RUBY_FREE_UNLESS_NULL(iseq->catch_table);
 	    RUBY_FREE_UNLESS_NULL(iseq->arg_opt_table);
 	    RUBY_FREE_UNLESS_NULL(iseq->arg_keyword_table);