diff --git a/ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp b/ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp
index 458ac0c29..da8b28f66 100644
--- a/ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp
+++ b/ground/gcs/src/libs/osgearth/osgQtQuick/OSGViewport.cpp
@@ -36,6 +36,7 @@
 #include <osg/Node>
 #include <osg/Vec4>
 #include <osg/ApplicationUsage>
+#include <osg/Version>
 #include <osgDB/WriteFile>
 #include <osgViewer/CompositeViewer>
 #include <osgViewer/ViewerEventHandlers>