1 files changed, 4 insertions, 0 deletions
diff --git a/hash.c b/hash.c
index 952a3e72fb..7bf5e11453 100644
--- a/hash.c
+++ b/hash.c
@@ -1003,12 +1003,16 @@ linear_copy(VALUE hash1, VALUE hash2)
         RHASH_ARRAY_BOUND_SET(hash1, RHASH_ARRAY_BOUND(hash2));
         RHASH_ARRAY_SIZE_SET(hash1, RHASH_ARRAY_SIZE(hash2));
         RHASH_ARRAY_SET(hash1, new_tab);
+
+        rb_gc_writebarrier_remember(hash1);
         return new_tab;
     }
     else {
         RHASH_ARRAY_BOUND_SET(hash1, RHASH_ARRAY_BOUND(hash2));
         RHASH_ARRAY_SIZE_SET(hash1, RHASH_ARRAY_SIZE(hash2));
         RHASH_ARRAY_SET(hash1, old_tab);
+
+        rb_gc_writebarrier_remember(hash1);
         return old_tab;
     }
 }