diff --git a/lib/ex_doc/markdown.ex b/lib/ex_doc/markdown.ex
index 62b457868..f747ab2c6 100644
--- a/lib/ex_doc/markdown.ex
+++ b/lib/ex_doc/markdown.ex
@@ -29,7 +29,7 @@ defmodule ExDoc.Markdown do
   Converts the given markdown document to HTML.
   """
   def to_html(text, opts \\ []) when is_binary(text) do
-    pretty_codeblocks(get_markdown_processor().to_html(text, opts))
+    get_markdown_processor().to_html(text, opts)
   end
 
   @doc """
diff --git a/lib/ex_doc/markdown/cmark.ex b/lib/ex_doc/markdown/cmark.ex
index 5b92166f5..031810f55 100644
--- a/lib/ex_doc/markdown/cmark.ex
+++ b/lib/ex_doc/markdown/cmark.ex
@@ -15,6 +15,6 @@ defmodule ExDoc.Markdown.Cmark do
   Generate HTML output. Cmark takes no options.
   """
   def to_html(text, _opts) do
-    Cmark.to_html(text)
+    Cmark.to_html(text)  |> ExDoc.Markdown.pretty_codeblocks
   end
 end
diff --git a/lib/ex_doc/markdown/earmark.ex b/lib/ex_doc/markdown/earmark.ex
index 05a79b7c6..d9eb07458 100644
--- a/lib/ex_doc/markdown/earmark.ex
+++ b/lib/ex_doc/markdown/earmark.ex
@@ -32,6 +32,6 @@ defmodule ExDoc.Markdown.Earmark do
              file: Keyword.get(opts, :file),
              breaks: Keyword.get(opts, :breaks, false),
              smartypants: Keyword.get(opts, :smartypants, true))
-    Earmark.as_html!(text, options)
+    Earmark.as_html!(text, options) |> ExDoc.Markdown.pretty_codeblocks
   end
 end