diff --git a/src/osgWidget/CMakeLists.txt b/src/osgWidget/CMakeLists.txt
index 9ded1c2ea..e3929da68 100644
--- a/src/osgWidget/CMakeLists.txt
+++ b/src/osgWidget/CMakeLists.txt
@@ -60,6 +60,7 @@ LINK_INTERNAL(${LIB_NAME}
     osgDB
     osg
     OpenThreads
+    osgGA
 )
 LINK_CORELIB_DEFAULT(${LIB_NAME})