diff --git a/Aircraft/Instruments-3d/ISFD/ISFDGenericController.nas b/Aircraft/Instruments-3d/ISFD/ISFDGenericController.nas
index 965ae54a8..ed65c28c3 100644
--- a/Aircraft/Instruments-3d/ISFD/ISFDGenericController.nas
+++ b/Aircraft/Instruments-3d/ISFD/ISFDGenericController.nas
@@ -13,6 +13,7 @@ var GenericController =
         _attitudeProp : "/instrumentation/attitude-indicator/",
         _navRadio: "/instrumentation/nav[0]/",
         _isSTDBaro : 0,
+        _isHPa : 1,
         _approachMode : 0
     };