1 files changed, 1 insertions, 0 deletions
diff --git a/intern.h b/intern.h
index 04fbf7f113..5a941b6627 100644
--- a/intern.h
+++ b/intern.h
@@ -502,6 +502,7 @@ VALUE rb_str_cat(VALUE, const char*, long);
 VALUE rb_str_cat2(VALUE, const char*);
 VALUE rb_str_append(VALUE, VALUE);
 VALUE rb_str_concat(VALUE, VALUE);
+int rb_memhash(const void *ptr, long len);
 int rb_str_hash(VALUE);
 int rb_str_cmp(VALUE, VALUE);
 VALUE rb_str_upto(VALUE, VALUE, int);