diff --git a/src/osgPlugins/hdr/CMakeLists.txt b/src/osgPlugins/hdr/CMakeLists.txt
index 84c195ebb..afc2de62e 100644
--- a/src/osgPlugins/hdr/CMakeLists.txt
+++ b/src/osgPlugins/hdr/CMakeLists.txt
@@ -1,7 +1,16 @@
 #this file is automatically generated 
 
 
-SET(TARGET_SRC ReaderWriterHDR.cpp hdrloader.cpp )
-SET(TARGET_H hdrloader.h )
+SET(TARGET_SRC
+    ReaderWriterHDR.cpp
+    hdrloader.cpp
+    hdrwriter.cpp
+)
+
+SET(TARGET_H
+    hdrloader.h
+    hdrwriter.h
+)
+
 #### end var setup  ###
 SETUP_PLUGIN(hdr)