diff --git a/src/MNH/ini_lb.f90 b/src/MNH/ini_lb.f90
index d468fed174cd9f45547467d25f14b4ebcdcd0131..855504ff4ea4fc14d1624406d78878c56fc2a30c 100644
--- a/src/MNH/ini_lb.f90
+++ b/src/MNH/ini_lb.f90
@@ -229,7 +229,7 @@ LOGICAL :: GHORELAX_R, GHORELAX_SV ! switch for the horizontal relaxation
                                    ! for moist and scalar variables
 CHARACTER (LEN= LEN(HGETRVM)), DIMENSION (7) :: YGETRXM ! Arrays with  the get indicators 
                                                         !  for the moist variables
-CHARACTER (LEN= 16), DIMENSION (7) :: YRECFMX,YRECFMY ! arrays with the name  of the LB fields
+CHARACTER (LEN=LEN_HREC), DIMENSION (7) :: YRECFMX,YRECFMY ! arrays with the name  of the LB fields
                                                       ! in FM files for the moist variables
 INTEGER :: IMASDEV                                                      
 CHARACTER(LEN=2)  :: INDICE ! to index CCN and IFN fields of LIMA scheme