diff --git a/src/MNH/ch_monitorn.f90 b/src/MNH/ch_monitorn.f90
index eb8db26c60d91dfa3c2354d326b3cb6039346b8a..4015aa217d38a5ce39521562b5180b7849068ca2 100644
--- a/src/MNH/ch_monitorn.f90
+++ b/src/MNH/ch_monitorn.f90
@@ -652,7 +652,6 @@ SELECT CASE (CCH_TDISCRETIZATION)
 END SELECT
 !
 !
-IF (LEN_TRIM(CSPEC_BU_DIAG)/=0.OR.LEN_TRIM(CSPEC_DIAG)/=0) GSPLIT=.FALSE.  ! Modif. for DIAG
 IF (CPROGRAM=='DIAG  ') GSPLIT=.FALSE.  ! Modif. for DIAG
 !
 !