diff --git a/src/OpenFOAM/containers/LinkedLists/user/ISLList.H b/src/OpenFOAM/containers/LinkedLists/user/ISLList.H
index 4d62f8d801676a1121ef563eeca44afc8e18ca67..c685b6ffc0fd98e02988d5a538f5b46bfa11ab18 100644
--- a/src/OpenFOAM/containers/LinkedLists/user/ISLList.H
+++ b/src/OpenFOAM/containers/LinkedLists/user/ISLList.H
@@ -43,4 +43,8 @@ namespace Foam
     using ISLList = ILList<SLListBase, T>;
 }
 
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
 // ************************************************************************* //