More typo repair.
diff --git a/Modules/cPickle.c b/Modules/cPickle.c
index 27d8db8..5452713 100644
--- a/Modules/cPickle.c
+++ b/Modules/cPickle.c
@@ -1959,7 +1959,7 @@
 		/* Verify py_code has the right type and value. */
 		if (!PyInt_Check(py_code)) {
 			cPickle_ErrFormat(PicklingError, "Can't pickle %s: "
-				"extension code %s isn't n integer",
+				"extension code %s isn't an integer",
 				"OO", args, py_code);
 			goto finally;
 		}