1 files changed, 1 insertions, 1 deletions
diff --git a/object.c b/object.c
index 683c893c82..d226dbf858 100644
--- a/object.c
+++ b/object.c
@@ -295,7 +295,7 @@ init_copy(VALUE dest, VALUE obj)
 	    RCLASS_CONST_TBL(dest) = 0;
 	}
 	if (RCLASS_IV_TBL(obj)) {
-	    RCLASS_IV_TBL(dest) = st_copy(RCLASS_IV_TBL(obj));
+	    RCLASS_IV_TBL(dest) = rb_st_copy(dest, RCLASS_IV_TBL(obj));
 	}
         break;
     }