diff --git a/Objects/stringobject.c b/Objects/stringobject.c
index dffc8e0e1a4..648e6e2a486 100644
--- a/Objects/stringobject.c
+++ b/Objects/stringobject.c
@@ -479,7 +479,7 @@ string_buffer_getwritebuf(self, index, ptr)
 	const void **ptr;
 {
 	PyErr_SetString(PyExc_TypeError,
-			"Cannot use string as modifyable buffer");
+			"Cannot use string as modifiable buffer");
 	return -1;
 }