diff --git a/Objects/listobject.c b/Objects/listobject.c
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -2624,7 +2624,8 @@
 		if (value == NULL) {
 			/* delete slice */
 			PyObject **garbage;
-			Py_ssize_t cur, i;
+			size_t cur;
+			Py_ssize_t i;
 
 			if (slicelength <= 0)
 				return 0;