diff --git a/config_src/coupled_driver/MOM_surface_forcing.F90 b/config_src/coupled_driver/MOM_surface_forcing.F90
index 19a0ddbf86..02b54daefe 100644
--- a/config_src/coupled_driver/MOM_surface_forcing.F90
+++ b/config_src/coupled_driver/MOM_surface_forcing.F90
@@ -166,6 +166,7 @@ module MOM_surface_forcing
   real, pointer, dimension(:,:) :: fprec           =>NULL() !< mass flux of frozen precip (kg/m2/s)
   real, pointer, dimension(:,:) :: runoff          =>NULL() !< mass flux of liquid runoff (kg/m2/s)
   real, pointer, dimension(:,:) :: calving         =>NULL() !< mass flux of frozen runoff (kg/m2/s)
+  real, pointer, dimension(:,:) :: stress_mag      =>NULL() !< The time-mean magnitude of the stress on the ocean (Pa)
   real, pointer, dimension(:,:) :: ustar_berg      =>NULL() !< frictional velocity beneath icebergs (m/s)
   real, pointer, dimension(:,:) :: area_berg       =>NULL() !< area covered by icebergs(m2/m2)
   real, pointer, dimension(:,:) :: mass_berg       =>NULL() !< mass of icebergs(kg/m2)