1 files changed, 1 insertions, 0 deletions
diff --git a/intern.h b/intern.h
index f427791267..fe08ea49f5 100644
--- a/intern.h
+++ b/intern.h
@@ -49,6 +49,7 @@ VALUE rb_ary_concat _((VALUE, VALUE));
 VALUE rb_ary_assoc _((VALUE, VALUE));
 VALUE rb_ary_rassoc _((VALUE, VALUE));
 VALUE rb_ary_includes _((VALUE, VALUE));
+VALUE rb_ary_cmp _((VALUE, VALUE));
 VALUE rb_protect_inspect _((VALUE(*)(),VALUE,VALUE));
 VALUE rb_inspecting_p _((VALUE));
 /* bignum.c */