diff --git a/src/MNH/mode_mnh_zwork.f90 b/src/MNH/mode_mnh_zwork.f90
index 50c16b4b5e3543298e044c0f0178f2648f7dd9a0..2458d99daa2495d604915a92f4ec868c7f134992 100644
--- a/src/MNH/mode_mnh_zwork.f90
+++ b/src/MNH/mode_mnh_zwork.f90
@@ -103,7 +103,7 @@ MODULE MODE_MNH_ZWORK
 
 
 !------ Real 1DFLAT pool
-  INTEGER, PARAMETER                                 :: JPMAX_T1DFLAT_R = 10       !Used to determine max size of buffer ZT1DFLAT
+  INTEGER, PARAMETER                                 :: JPMAX_T1DFLAT_R = 20       !Used to determine max size of buffer ZT1DFLAT
                                                                                    !(3D size of the mesh * JPMAX_T1DFLAT_R)
   INTEGER,                SAVE                       :: NPMAX_POOL_T1DFLAT_R = 100 !Maximum size of the pool (max number of arrays)
   INTEGER(KIND=MNHINT64), ALLOCATABLE, DIMENSION (:) :: NT1DFLAT_POOL_R   !Position in ZT1DFLAT of the beginning of each array