diff --git a/src/comm/QGCXPlaneLink.cc b/src/comm/QGCXPlaneLink.cc
index 4bde55a2605493011939d5f8f31315fccbe623f7..25018a1f940cd0bb148a7a87fd20c1947e1cdf1f 100644
--- a/src/comm/QGCXPlaneLink.cc
+++ b/src/comm/QGCXPlaneLink.cc
@@ -48,7 +48,7 @@ QGCXPlaneLink::QGCXPlaneLink(UASInterface* mav, QString remoteHost, QHostAddress
     socket(NULL),
     process(NULL),
     terraSync(NULL),
-    barometerOffsetkPa(15.0f),
+    barometerOffsetkPa(-8.0f),
     airframeID(QGCXPlaneLink::AIRFRAME_UNKNOWN),
     xPlaneConnected(false),
     xPlaneVersion(0),