diff --git a/src/plugins/python/weechat-python.c b/src/plugins/python/weechat-python.c
index 599d16bb6..903e5e559 100644
--- a/src/plugins/python/weechat-python.c
+++ b/src/plugins/python/weechat-python.c
@@ -86,7 +86,7 @@ static struct PyModuleDef moduleDef = {
     PyModuleDef_HEAD_INIT,
     "weechat",
     NULL,
-    -1,
+    0,
     weechat_python_funcs,
     NULL,
     NULL,
@@ -97,7 +97,7 @@ static struct PyModuleDef moduleDefOutputs = {
     PyModuleDef_HEAD_INIT,
     "weechatOutputs",
     NULL,
-    -1,
+    0,
     weechat_python_output_funcs,
     NULL,
     NULL,