diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index 3535544..6e3f297 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -71,9 +71,9 @@
 	int new_lasti = 0;		/* The new value of f_lasti */
 	int new_iblock = 0;		/* The new value of f_iblock */
 	char *code = NULL;		/* The bytecode for the frame... */
-	int code_len = 0;		/* ...and its length */
+	Py_ssize_t code_len = 0;	/* ...and its length */
 	char *lnotab = NULL;		/* Iterating over co_lnotab */
-	int lnotab_len = 0;		/* (ditto) */
+	Py_ssize_t lnotab_len = 0;	/* (ditto) */
 	int offset = 0;			/* (ditto) */
 	int line = 0;			/* (ditto) */
 	int addr = 0;			/* (ditto) */
@@ -540,7 +540,7 @@
 	PyFrameObject *back = tstate->frame;
 	PyFrameObject *f;
 	PyObject *builtins;
-	int extras, ncells, nfrees, i;
+	Py_ssize_t extras, ncells, nfrees, i;
 
 #ifdef Py_DEBUG
 	if (code == NULL || globals == NULL || !PyDict_Check(globals) ||
@@ -678,10 +678,10 @@
 /* Convert between "fast" version of locals and dictionary version */
 
 static void
-map_to_dict(PyObject *map, int nmap, PyObject *dict, PyObject **values,
-	    int deref)
+map_to_dict(PyObject *map, Py_ssize_t nmap, PyObject *dict, PyObject **values,
+	    Py_ssize_t deref)
 {
-	int j;
+	Py_ssize_t j;
 	for (j = nmap; --j >= 0; ) {
 		PyObject *key = PyTuple_GET_ITEM(map, j);
 		PyObject *value = values[j];
@@ -699,10 +699,10 @@
 }
 
 static void
-dict_to_map(PyObject *map, int nmap, PyObject *dict, PyObject **values,
-	    int deref, int clear)
+dict_to_map(PyObject *map, Py_ssize_t nmap, PyObject *dict, PyObject **values,
+	    Py_ssize_t deref, int clear)
 {
-	int j;
+	Py_ssize_t j;
 	for (j = nmap; --j >= 0; ) {
 		PyObject *key = PyTuple_GET_ITEM(map, j);
 		PyObject *value = PyObject_GetItem(dict, key);
@@ -733,7 +733,7 @@
 	PyObject *locals, *map;
 	PyObject **fast;
 	PyObject *error_type, *error_value, *error_traceback;
-	int j;
+	Py_ssize_t j;
 	if (f == NULL)
 		return;
 	locals = f->f_locals;
@@ -776,7 +776,7 @@
 	PyObject *locals, *map;
 	PyObject **fast;
 	PyObject *error_type, *error_value, *error_traceback;
-	int j;
+	Py_ssize_t j;
 	if (f == NULL)
 		return;
 	locals = f->f_locals;