diff --git a/mission/acs/str/strHelpers.h b/mission/acs/str/strHelpers.h
index 8f83331d..9f284725 100644
--- a/mission/acs/str/strHelpers.h
+++ b/mission/acs/str/strHelpers.h
@@ -7,7 +7,7 @@
 #include <fsfw/devicehandlers/DeviceHandlerIF.h>
 #include <fsfw/serviceinterface/ServiceInterfaceStream.h>
 
-#include "objects/systemObjectList.h"
+#include <optional>
 
 namespace startracker {