diff --git a/docs/apibuild.py b/docs/apibuild.py
index 5250c5ad73..30e224dd4d 100755
--- a/docs/apibuild.py
+++ b/docs/apibuild.py
@@ -1312,7 +1312,7 @@ class CParser:
         name = None
         self.comment = None
         comment = ""
-        value = "0"
+        value = "-1"
         while token is not None:
             if token[0] == "sep" and token[1] == "{":
                 token = self.token()