1 files changed, 1 insertions, 0 deletions
diff --git a/class.c b/class.c
index fac09657fd..f57f53b11b 100644
--- a/class.c
+++ b/class.c
@@ -170,6 +170,7 @@ VALUE
 rb_class_inherited(super, klass)
     VALUE super, klass;
 {
+    if (!super) super = rb_cObject;
     return rb_funcall(super, rb_intern("inherited"), 1, klass);
 }