diff --git a/src/SURFEX/ecoclimap2_lai.F90 b/src/SURFEX/ecoclimap2_lai.F90
index 467ca6d840d0385ecb27b3cc4a6ac6d9b4b05127..a1b5257d36ef6807af8e10d8fd877799a63bebc0 100644
--- a/src/SURFEX/ecoclimap2_lai.F90
+++ b/src/SURFEX/ecoclimap2_lai.F90
@@ -72,7 +72,7 @@ REAL(KIND=JPRB) :: ZHOOK_HANDLE
 !           ----------------------
 !
 IF (LHOOK) CALL DR_HOOK('ECOCLIMAP2_LAI',0,ZHOOK_HANDLE)
-XDATA_LAI(301:,:,:) = XUNDEF
+XDATA_LAI(256:,:,:) = XUNDEF
 !
 !*       2. if averaged LAI
 !           ---------------