diff --git a/Tools/ardupilotwaf/boards.py b/Tools/ardupilotwaf/boards.py
index 8d3f8c32fc..44007861c2 100644
--- a/Tools/ardupilotwaf/boards.py
+++ b/Tools/ardupilotwaf/boards.py
@@ -115,6 +115,7 @@ class Board:
             '-Wno-redundant-decls',
             '-Wno-unknown-pragmas',
             '-Wno-trigraphs',
+            '-Wno-format-contains-nul',
             '-Werror=shadow',
             '-Werror=return-type',
             '-Werror=unused-result',
@@ -175,6 +176,7 @@ class Board:
             '-Wno-redundant-decls',
             '-Wno-unknown-pragmas',
             '-Wno-expansion-to-defined',
+            '-Wno-format-contains-nul',
             '-Werror=attributes',
             '-Werror=format-security',
             '-Werror=format-extra-args',