diff --git a/Objects/bytearrayobject.c b/Objects/bytearrayobject.c
index d80e694..39aa69a 100644
--- a/Objects/bytearrayobject.c
+++ b/Objects/bytearrayobject.c
@@ -650,7 +650,8 @@
     else {
         if (needed == 0) {
             /* Delete slice */
-            Py_ssize_t cur, i;
+            size_t cur;
+            Py_ssize_t i;
 
             if (!_canresize(self))
                 return -1;
diff --git a/Objects/listobject.c b/Objects/listobject.c
index 09fba48..c1ece2b 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -2430,7 +2430,8 @@
 		if (value == NULL) {
 			/* delete slice */
 			PyObject **garbage;
-			Py_ssize_t cur, i;
+			size_t cur;
+			Py_ssize_t i;
 
 			if (slicelength <= 0)
 				return 0;