typo
diff --git a/Modules/_csv.c b/Modules/_csv.c
index 68c6a81..5f21182 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -1096,7 +1096,7 @@
         row_iter = PyObject_GetIter(seqseq);
         if (row_iter == NULL) {
                 PyErr_SetString(PyExc_TypeError,
-                                "writerows() argument must be iteratable");
+                                "writerows() argument must be iterable");
                 return NULL;
         }
         while ((row_obj = PyIter_Next(row_iter))) {