diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5536123f9..7eeddf4d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -535,7 +535,7 @@ endif(WIN32)
 IF(BUILD_OPENMW OR BUILD_OPENCS)
 add_subdirectory (extern/osg-ffmpeg-videoplayer)
 add_subdirectory (extern/oics)
-if (USE_QT)
+if (BUILD_OPENCS)
     add_subdirectory (extern/osgQt)
 endif()
 ENDIF(BUILD_OPENMW OR BUILD_OPENCS)