diff --git a/src/LIB/SURCOUCHE/src/mode_io_field_write.f90 b/src/LIB/SURCOUCHE/src/mode_io_field_write.f90
index f255fa59cef0dc435812b7696f73e1eae01c4fa6..e777d5cac115882bb0cd781ac0f704acae52686f 100644
--- a/src/LIB/SURCOUCHE/src/mode_io_field_write.f90
+++ b/src/LIB/SURCOUCHE/src/mode_io_field_write.f90
@@ -184,6 +184,8 @@ CONTAINS
     integer                       :: ierr_mpi
     integer, dimension(3)         :: iresps
 
+    kresp_out = 0
+
     iresps(1) = kresp_in
     iresps(2) = kresp_lfi
     iresps(3) = kresp_nc4