diff --git a/src/rendering/common.jl b/src/rendering/common.jl
index 538f294..fd9767a 100644
--- a/src/rendering/common.jl
+++ b/src/rendering/common.jl
@@ -138,7 +138,7 @@ end
 
 should_render(chunk) = chunk.options[:echo] && chunk.options[:results] ≠ "hidden"
 
-render_doc(docformat, body, args...) = body
+render_doc(docformat, body, doc) = body
 
 # utilities
 # ---------
diff --git a/src/rendering/rendering.jl b/src/rendering/rendering.jl
index b524963..cab31a7 100644
--- a/src/rendering/rendering.jl
+++ b/src/rendering/rendering.jl
@@ -16,16 +16,14 @@ register_format!(_, format) = error("Format needs to be a subtype of WeaveFormat
 
 set_rendering_options!(doc; kwargs...) = set_rendering_options!(doc.format; kwargs...)
 
-function render_doc(doc)
-    docformat = doc.format
-
+function render_doc(doc::WeaveDoc)
     restore_header!(doc)
 
+    docformat = doc.format
     lines = map(copy(doc.chunks)) do chunk
         format_chunk(chunk, docformat)
     end
     body = join(lines, '\n')
-
     return render_doc(docformat, body, doc)
 end