diff --git a/docs/src/nhs.md b/docs/src/nhs.md
index 82bee660..d01d0172 100644
--- a/docs/src/nhs.md
+++ b/docs/src/nhs.md
@@ -114,7 +114,7 @@ tracer_composition = @relation () begin
 
   continuity(FD,v,c)
 end
-to_graphviz(tracer_composition)
+to_graphviz(tracer_composition, box_labels=:name, junction_labels=:variable, prog="circo")
 ```
 
  Let's "lock in" isotropic diffusivity by doing an intermediate oapply.
@@ -142,7 +142,7 @@ nonhydrostatic_composition = @relation () begin
   #   => The b term in momentum is that described by the equation of state here.
   eos(b, T, S)
 end
-to_graphviz(nonhydrostatic_composition)
+to_graphviz(nonhydrostatic_composition, box_labels=:name, junction_labels=:variable, prog="circo")
 ```