diff --git a/src/regolith/regolith_interior.f90 b/src/regolith/regolith_interior.f90
index 5159086b..a3fd2d60 100644
--- a/src/regolith/regolith_interior.f90
+++ b/src/regolith/regolith_interior.f90
@@ -40,7 +40,7 @@ subroutine regolith_interior(user,surf,crater,domain,incval,nmeltsheet,vmeltshee
 
     !Executable code
 
-    hmeltsheet = vmeltsheet / (nmeltsheet*user%gridsize*user%gridsize)
+    hmeltsheet = vmeltsheet / (nmeltsheet*user%pix*user%pix)
     allocate(newlayer%meltdist(domain%rcnum))
 
     inc = incval