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-rw-r--r--scripts/qapi/visit.py8
1 files changed, 4 insertions, 4 deletions
diff --git a/scripts/qapi/visit.py b/scripts/qapi/visit.py
index c72f2bc5c0..4efce62b0c 100644
--- a/scripts/qapi/visit.py
+++ b/scripts/qapi/visit.py
@@ -285,8 +285,9 @@ class QAPISchemaGenVisitVisitor(QAPISchemaModularCVisitor):
     def __init__(self, prefix):
         QAPISchemaModularCVisitor.__init__(
             self, prefix, 'qapi-visit', ' * Schema-defined QAPI visitors',
-            __doc__)
-        self._add_system_module(None, ' * Built-in QAPI visitors')
+            ' * Built-in QAPI visitors', __doc__)
+
+    def _begin_system_module(self, name):
         self._genc.preamble_add(mcgen('''
 #include "qemu/osdep.h"
 #include "qapi/error.h"
@@ -296,8 +297,7 @@ class QAPISchemaGenVisitVisitor(QAPISchemaModularCVisitor):
 #include "qapi/visitor.h"
 #include "qapi/qapi-builtin-types.h"
 
-''',
-                                      prefix=prefix))
+'''))
 
     def _begin_user_module(self, name):
         types = self._module_basename('qapi-types', name)