diff --git a/Tools/ardupilotwaf/boards.py b/Tools/ardupilotwaf/boards.py
index 1105fb83a6..2c1a4a6278 100644
--- a/Tools/ardupilotwaf/boards.py
+++ b/Tools/ardupilotwaf/boards.py
@@ -92,6 +92,7 @@ class Board:
             '-Werror=unused-result',
             '-Werror=narrowing',
             '-Werror=attributes',
+            '-Werror=overflow',
             '-Werror=format-extra-args',
         ]