diff --git a/ccpp/data/CCPP_typedefs.F90 b/ccpp/data/CCPP_typedefs.F90
index 9a6a387ba..ed27c5e37 100644
--- a/ccpp/data/CCPP_typedefs.F90
+++ b/ccpp/data/CCPP_typedefs.F90
@@ -929,6 +929,8 @@ subroutine gfs_interstitial_setup_tracers(Interstitial, Model)
     if (Model%imp_physics == Model%imp_physics_thompson) then
       if (Model%ltaerosol) then
         Interstitial%nvdiff = 12
+     else if (Model%mraerosol) then
+        Interstitial%nvdiff = 10
       else
         Interstitial%nvdiff = 9
       endif
@@ -1018,6 +1020,8 @@ subroutine gfs_interstitial_setup_tracers(Interstitial, Model)
       elseif (Model%imp_physics == Model%imp_physics_thompson) then
         if (Model%ltaerosol) then
           Interstitial%nvdiff = 12
+        else if (Model%mraerosol) then
+          Interstitial%nvdiff = 10
         else
           Interstitial%nvdiff = 9
         endif
diff --git a/ccpp/physics b/ccpp/physics
index 5dc968ef4..9b6997449 160000
--- a/ccpp/physics
+++ b/ccpp/physics
@@ -1 +1 @@
-Subproject commit 5dc968ef4e0aa0c36ef980e39a44d58056d1cb2c
+Subproject commit 9b69974496a208e26feef30d0b0e405ac4e023b9