diff --git a/qgroundcontrol.pro b/qgroundcontrol.pro
index 8eb3fca..8e5164f 100644
--- a/qgroundcontrol.pro
+++ b/qgroundcontrol.pro
@@ -138,7 +138,7 @@ FORMS += src/ui/MainWindow.ui \
     src/ui/QGCRemoteControlView.ui \
     src/ui/WaypointGlobalView.ui \
     src/ui/SlugsDataSensorView.ui \
-    src/ui/slugshilsim.ui
+    src/ui/SlugsHilSim.ui
 INCLUDEPATH += src \
     src/ui \
     src/ui/linechart \
@@ -239,7 +239,7 @@ HEADERS += src/MG.h \
     src/ui/map3D/Imagery.h \
     src/comm/QGCMAVLink.h\
     src/ui/SlugsDataSensorView.h \
-    src/ui/slugshilsim.h
+    src/ui/SlugsHilSim.h
 SOURCES += src/main.cc \
     src/Core.cc \
     src/uas/UASManager.cc \
@@ -320,7 +320,7 @@ SOURCES += src/main.cc \
     src/ui/map3D/WebImage.cc \
     src/ui/map3D/Imagery.cc \
     src/ui/SlugsDataSensorView.cc \
-    src/ui/slugshilsim.cc
+    src/ui/SlugsHilSim.cc
 
 RESOURCES = mavground.qrc
 
diff --git a/src/ui/slugshilsim.h b/src/ui/slugshilsim.h
index bfeb242..345b32e 100644
--- a/src/ui/slugshilsim.h
+++ b/src/ui/slugshilsim.h
@@ -3,6 +3,8 @@
 
 #include <QWidget>
 
+#include "LinkInterface.h"
+
 namespace Ui {
     class SlugsHilSim;
 }
@@ -15,6 +17,9 @@ public:
     explicit SlugsHilSim(QWidget *parent = 0);
     ~SlugsHilSim();
 
+protected:
+    LinkInterface* hilLink;
+
 private:
     Ui::SlugsHilSim *ui;
 };