diff --git a/.lgtm/cpp-queries/PotentiallyDangerousFunction.ql b/.lgtm/cpp-queries/PotentiallyDangerousFunction.ql
index 96712cf1c6..865330430d 100644
--- a/.lgtm/cpp-queries/PotentiallyDangerousFunction.ql
+++ b/.lgtm/cpp-queries/PotentiallyDangerousFunction.ql
@@ -41,6 +41,9 @@ predicate potentiallyDangerousFunction(Function f, string message) {
   ) or (
     f.getQualifiedName() = "strerror" and
     message = "Call to strerror() is not thread-safe. Use strerror_r() or printf()'s %m format string instead."
+  ) or (
+    f.getQualifiedName() = "accept" and
+    message = "Call to accept() is not O_CLOEXEC-safe. Use accept4() instead."
   )
 }