diff --git a/cmake/app/boilerplate.cmake b/cmake/app/boilerplate.cmake
index 89b0888ea89..53e693e03ff 100644
--- a/cmake/app/boilerplate.cmake
+++ b/cmake/app/boilerplate.cmake
@@ -291,6 +291,7 @@ foreach(root ${BOARD_ROOT})
 
   if(DEFINED SHIELD)
     foreach(s ${SHIELD_AS_LIST})
+      list(REMOVE_ITEM SHIELD ${s})
       list(FIND SHIELD_LIST ${s} _idx)
       if (NOT _idx EQUAL -1)
         list(GET shields_refs_list ${_idx} s_path)