diff --git a/build/gen.py b/build/gen.py
index 96dafb9..a7142fa 100755
--- a/build/gen.py
+++ b/build/gen.py
@@ -364,6 +364,7 @@
         '/wd4127',
         '/wd4244',
         '/wd4267',
+        '/wd4505',
         '/wd4838',
         '/wd4996',
     ])