diff --git a/source/RobotAPI/components/ArViz/Client/ScopedClient.h b/source/RobotAPI/components/ArViz/Client/ScopedClient.h
index 78adbcab32013de4b82f9a35671063e66a4aaa11..4a799efda714e8850f23e3cac7ecaad995c28119 100644
--- a/source/RobotAPI/components/ArViz/Client/ScopedClient.h
+++ b/source/RobotAPI/components/ArViz/Client/ScopedClient.h
@@ -19,6 +19,8 @@
  *             GNU General Public License
  */
 
+#pragma once
+
 #include <set>
 
 #include "Client.h"