1 files changed, 1 insertions, 0 deletions
diff --git a/gc.c b/gc.c
index b1afbb1db7..b6ceff8d19 100644
--- a/gc.c
+++ b/gc.c
@@ -1109,6 +1109,7 @@ obj_free(obj)
 	}
 	break;
       case T_ICLASS:
+	rb_clear_cache_by_class((VALUE)obj);
 	/* iClass shares table with the module */
 	break;