diff --git a/src/series.jl b/src/series.jl
index 23d13d77..40ec0213 100644
--- a/src/series.jl
+++ b/src/series.jl
@@ -226,7 +226,7 @@ function _apply_type_recipe(plotattributes, v::Surface)
     end
 end
 
-# don't do anything for nothing
+# don't do anything vectors of datapoints and for nothing
 _apply_type_recipe(plotattributes, v::Nothing, letter) = v
 _apply_type_recipe(plotattributes, v::AbstractArray{<:MaybeString}, letter) = v
 _apply_type_recipe(plotattributes, v::AbstractArray{<:Union{Real, Nothing}}, letter) = v