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-rw-r--r--hash.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hash.c b/hash.c
index 279461f8f4..0eca4b99a4 100644
--- a/hash.c
+++ b/hash.c
@@ -1743,7 +1743,7 @@ keys_i(VALUE key, VALUE value, VALUE ary)
*
*/
-VALUE
+static VALUE
rb_hash_keys(VALUE hash)
{
VALUE keys;