diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
index c55ad65..390b670 100644
--- a/Objects/tupleobject.c
+++ b/Objects/tupleobject.c
@@ -318,7 +318,7 @@
     register Py_hash_t x, y;
     register Py_ssize_t len = Py_SIZE(v);
     register PyObject **p;
-    long mult = 1000003L;
+    Py_hash_t mult = 1000003L;
     x = 0x345678L;
     p = v->ob_item;
     while (--len >= 0) {
@@ -327,7 +327,7 @@
             return -1;
         x = (x ^ y) * mult;
         /* the cast might truncate len; that doesn't change hash stability */
-        mult += (long)(82520L + len + len);
+        mult += (Py_hash_t)(82520L + len + len);
     }
     x += 97531L;
     if (x == -1)