diff --git a/include/forward_unauthorized.hpp b/include/forward_unauthorized.hpp
index 02e1123..46a25d4 100644
--- a/include/forward_unauthorized.hpp
+++ b/include/forward_unauthorized.hpp
@@ -6,7 +6,7 @@
 namespace forward_unauthorized
 {
 
-bool hasWebuiRoute = false;
+static bool hasWebuiRoute = false;
 
 inline void sendUnauthorized(const crow::Request& req, crow::Response& res)
 {