diff --git a/Modules/datetimemodule.c b/Modules/datetimemodule.c
index 88a076b..0fc403b 100644
--- a/Modules/datetimemodule.c
+++ b/Modules/datetimemodule.c
@@ -2379,7 +2379,7 @@
 	return PyString_FromString(buffer);
 }
 
-/* str() calls the appropriate isofomat() method. */
+/* str() calls the appropriate isoformat() method. */
 static PyObject *
 date_str(PyDateTime_Date *self)
 {