diff --git a/src/osgPlugins/osgTerrain/CMakeLists.txt b/src/osgPlugins/osgTerrain/CMakeLists.txt
index 87e2a16da..55a47d512 100644
--- a/src/osgPlugins/osgTerrain/CMakeLists.txt
+++ b/src/osgPlugins/osgTerrain/CMakeLists.txt
@@ -2,7 +2,6 @@
 
 
 SET(TARGET_SRC 
-    TerrainNode.cpp
     ReaderWriterOsgTerrain.cpp
 )