diff --git a/ChangeLog b/ChangeLog
index c8c38b0ad2..84aa170c7c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Aug 21 15:00:23 2007  Koichi Sasada  <ko1@atdot.net>
+
+	* st.c (st_clear): reset num_entries too.
+
 Tue Aug 21 13:57:04 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* hash.c (st_foreach_func, rb_foreach_func): typedefed.
diff --git a/st.c b/st.c
index ce2b7eecc5..c14ea4a7e3 100644
--- a/st.c
+++ b/st.c
@@ -214,6 +214,7 @@ st_clear(st_table *table)
 	    ptr = next;
 	}
     }
+    table->num_entries = 0;
     table->head = 0;
 }