diff --git a/src/ALE/regrid_consts.F90 b/src/ALE/regrid_consts.F90
index 4037a55e2f..07d602bf7e 100644
--- a/src/ALE/regrid_consts.F90
+++ b/src/ALE/regrid_consts.F90
@@ -29,7 +29,7 @@ module regrid_consts
 character(len=6), parameter :: REGRIDDING_ARBITRARY_STRING = "ARB" !< Arbitrary coordinates
 character(len=6), parameter :: REGRIDDING_HYCOM1_STRING = "HYCOM1" !< Hycom string
 character(len=6), parameter :: REGRIDDING_SLIGHT_STRING = "SLIGHT" !< Hybrid S-rho string
-character(len=6), parameter :: REGRIDDING_SIGMA_SHELF_ZSTAR_STRING = "SIGMA_SHELF_ZSTAR" !< Hybrid z*/sigma
+character(len=17), parameter :: REGRIDDING_SIGMA_SHELF_ZSTAR_STRING = "SIGMA_SHELF_ZSTAR" !< Hybrid z*/sigma
 character(len=6), parameter :: DEFAULT_COORDINATE_MODE = REGRIDDING_LAYER_STRING !< Default coordinate mode
 
 integer, dimension(REGRIDDING_NUM_TYPES), parameter :: vertical_coords = &