diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index d121eb00de23f23a13d0d784271b26b3c0d323b8..eae09a49d9fd38e79681bfce7db7f839d8cadbe6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -34,7 +34,7 @@ FOREACH( mylibfolder
 
 ENDFOREACH()
 
-OPTION(BUILD_OSG_DEPRECATED_SERIALIZERS "Build deprecated .osg serializers" ON)
+OPTION(BUILD_OSG_DEPRECATED_SERIALIZERS "Build deprecated .osg serializers" OFF)
 
 if(BUILD_OSG_DEPRECATED_SERIALIZERS)
     ADD_SUBDIRECTORY(osgWrappers/deprecated-dotosg)