diff --git a/cmake/FindDataMan.cmake b/cmake/FindDataMan.cmake
index fd9ce61b5f48f8db808983bb637cf1aa04e4a153..cb4d2315a119a6a13d2d951c0c6dac1b273d3798 100644
--- a/cmake/FindDataMan.cmake
+++ b/cmake/FindDataMan.cmake
@@ -51,6 +51,7 @@ if(NOT DataMan_FOUND)
   find_library(DataMan_LIBRARY dataman ${_DataMan_LIBRARY_HINT})
   unset(_DataMan_LIBRARY_HINT)
 
+  include(FindPackageHandleStandardArgs)
   find_package_handle_standard_args(DataMan
     FOUND_VAR DataMan_FOUND
     REQUIRED_VARS