diff --git a/src/blackmisc/simulation/fscommon/aircraftcfgparser.h b/src/blackmisc/simulation/fscommon/aircraftcfgparser.h
index 85f0747c7..1d41ce231 100644
--- a/src/blackmisc/simulation/fscommon/aircraftcfgparser.h
+++ b/src/blackmisc/simulation/fscommon/aircraftcfgparser.h
@@ -9,7 +9,7 @@
 
 //! \file
 
-#ifndef BLACKMISC_SIMULATION_FSCOMMON_AIRCRAFTCFPARSER_H
+#ifndef BLACKMISC_SIMULATION_FSCOMMON_AIRCRAFTCFGPARSER_H
 #define BLACKMISC_SIMULATION_FSCOMMON_AIRCRAFTCFGPARSER_H
 
 #include "blackmisc/blackmiscexport.h"