diff --git a/Modules/unicodedata.c b/Modules/unicodedata.c
index ba218a3e58e..8aa18f2336e 100644
--- a/Modules/unicodedata.c
+++ b/Modules/unicodedata.c
@@ -511,7 +511,7 @@ unicodedata_normalize(PyObject *self, PyObject *args)
     char *form;
     PyObject *input;
 
-    if(!PyArg_ParseTuple(args, "sO!:normalized",
+    if(!PyArg_ParseTuple(args, "sO!:normalize",
                          &form, &PyUnicode_Type, &input))
         return NULL;