diff --git a/clients/oxygen/CMakeLists.txt b/clients/oxygen/CMakeLists.txt
index 02ed6a47e5..a106a96602 100644
--- a/clients/oxygen/CMakeLists.txt
+++ b/clients/oxygen/CMakeLists.txt
@@ -1,4 +1,5 @@
 ########### add version number into compilation defines
+# FIXME: CPACK_PACKAGE_VERSION_* are empty
 add_definitions ( -DAPP_VERSION=\\\"${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}\\\")
 add_subdirectory( config )
 add_subdirectory( demo )