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-rw-r--r--include/ruby/intern.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/ruby/intern.h b/include/ruby/intern.h
index 1e45f2d977..9d8034a333 100644
--- a/include/ruby/intern.h
+++ b/include/ruby/intern.h
@@ -329,6 +329,7 @@ VALUE rb_hash(VALUE);
VALUE rb_hash_new(void);
VALUE rb_hash_freeze(VALUE);
VALUE rb_hash_aref(VALUE, VALUE);
+VALUE rb_hash_lookup(VALUE, VALUE);
VALUE rb_hash_aset(VALUE, VALUE, VALUE);
VALUE rb_hash_delete_if(VALUE);
VALUE rb_hash_delete(VALUE,VALUE);