1 files changed, 2 insertions, 0 deletions
diff --git a/enum.c b/enum.c
index cd77d9ca7a..c744665949 100644
--- a/enum.c
+++ b/enum.c
@@ -3855,6 +3855,7 @@ enum_sum(int argc, VALUE* argv, VALUE obj)
 static VALUE
 uniq_func(RB_BLOCK_CALL_FUNC_ARGLIST(i, hash))
 {
+    ENUM_WANT_SVALUE();
     rb_hash_add_new_element(hash, i, i);
     return Qnil;
 }
@@ -3862,6 +3863,7 @@ uniq_func(RB_BLOCK_CALL_FUNC_ARGLIST(i, hash))
 static VALUE
 uniq_iter(RB_BLOCK_CALL_FUNC_ARGLIST(i, hash))
 {
+    ENUM_WANT_SVALUE();
     rb_hash_add_new_element(hash, rb_yield_values2(argc, argv), i);
     return Qnil;
 }