diff --git a/columnphysics/icepack_therm_mushy.F90 b/columnphysics/icepack_therm_mushy.F90
index b379e20ac..1a28ed1c5 100644
--- a/columnphysics/icepack_therm_mushy.F90
+++ b/columnphysics/icepack_therm_mushy.F90
@@ -219,6 +219,8 @@ subroutine temperature_changes_salinity(dt,                 &
 
     if (sw_redist) then
 
+    dt_rhoi_hlyr = dt / (rhoi*hilyr)
+
     do k = 1, nilyr
 
        Iswabs_tmp = c0 ! all Iswabs is moved into fswsfc
diff --git a/configuration/scripts/options/set_nml.swredist b/configuration/scripts/options/set_nml.swredist
new file mode 100644
index 000000000..88e930f09
--- /dev/null
+++ b/configuration/scripts/options/set_nml.swredist
@@ -0,0 +1,7 @@
+    tr_pond_lvl  = .true.
+    tr_pond_topo = .false.
+    tr_pond_cesm = .false.
+    ktherm            = 2
+    sw_redist         = .true.
+    sw_frac           = 0.9d0
+    sw_dtemp          = 0.02d0
diff --git a/configuration/scripts/tests/base_suite.ts b/configuration/scripts/tests/base_suite.ts
index cbb9b587e..b8bec9d85 100644
--- a/configuration/scripts/tests/base_suite.ts
+++ b/configuration/scripts/tests/base_suite.ts
@@ -5,6 +5,7 @@ smoke          col     1x1        debug,bgcISPOL
 smoke          col     1x1        debug,bgcNICE
 smoke          col     1x1        debug,bgcsklNICE
 smoke          col     1x1        debug,run1year,thermo1
+smoke          col     1x1        debug,run1year,swredist
 smoke          col     1x1        debug,run1year,swccsm3
 smoke          col     1x1        debug,run1year,alt01
 smoke          col     1x1        debug,run1year,alt02