diff --git a/o2checkcode.sh b/o2checkcode.sh
index d5d4ace000..9a1b049628 100644
--- a/o2checkcode.sh
+++ b/o2checkcode.sh
@@ -59,6 +59,7 @@ CHECKS="${O2_CHECKER_CHECKS:--*\
 ,modernize-use-override\
 ,modernize-use-transparent-functors\
 ,modernize-use-uncaught-exceptions\
+,bugprone-signed-char-misuse\
 ,readability-braces-around-statements\
 }"