diff --git a/Objects/abstract.c b/Objects/abstract.c
index ac95123..7a5305a 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -1859,7 +1859,7 @@
 	if (f == NULL) {
 		if (PySequence_Check(o))
 			return PySeqIter_New(o);
-		PyErr_SetString(PyExc_TypeError, "iter() of non-sequence");
+		PyErr_SetString(PyExc_TypeError, "iteration over non-sequence");
 		return NULL;
 	}
 	else {
diff --git a/Objects/classobject.c b/Objects/classobject.c
index df10aa2..cef1894 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -1839,7 +1839,7 @@
 	}
 	PyErr_Clear();
 	if ((func = instance_getattr(self, getitemstr)) == NULL) {
-		PyErr_SetString(PyExc_TypeError, "iter() of non-sequence");
+		PyErr_SetString(PyExc_TypeError, "iteration over non-sequence");
 		return NULL;
 	}
 	Py_DECREF(func);
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index b8a4593..e5e7dcd 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -3261,7 +3261,7 @@
 	PyErr_Clear();
 	func = lookup_method(self, "__getitem__", &getitem_str);
 	if (func == NULL) {
-		PyErr_SetString(PyExc_TypeError, "iter() of non-sequence");
+		PyErr_SetString(PyExc_TypeError, "iteration over non-sequence");
 		return NULL;
 	}
 	Py_DECREF(func);