diff --git a/src/LIB/SURCOUCHE/src/mode_io_file_nc4.f90 b/src/LIB/SURCOUCHE/src/mode_io_file_nc4.f90
index b42803d7b247bb7022b239c5c431b4e4439c7f7b..a79e59e458b374ef768e09fb017859098121db04 100644
--- a/src/LIB/SURCOUCHE/src/mode_io_file_nc4.f90
+++ b/src/LIB/SURCOUCHE/src/mode_io_file_nc4.f90
@@ -122,9 +122,9 @@ subroutine io_open_file_nc4(tpfile)
   end if
 
   if (trim(tpfile%cmode) == 'READ') then
-    !call io_get_mnhversion(tpfile)
-    !if (tpfile%lmaster) call io_check_cleanly_closed_nc4(tpfile)
-    tpfile%nmnhversion = (/ 5,4,3 /)
+    call io_get_mnhversion(tpfile)
+    if (tpfile%lmaster) call io_check_cleanly_closed_nc4(tpfile)
+    !tpfile%nmnhversion = (/ 5,4,3 /)
   end if
 
 end subroutine io_open_file_nc4