Wiki will show relative links related to the wiki gollum repository.

app/helpers/gitlab_markdown_helper.rb

@@ -63,8 +63,7 @@ module GitlabMarkdownHelper
   # project_path_with_namespace - namespace/projectname, eg. gitlabhq/gitlabhq
   # ref - name of the branch or reference, eg. stable
   # requested_path - path of request, eg. doc/api/README.md, used in special case when path is pointing to the .md file were the original request is coming from
-  # wiki - whether the markdown is from wiki or not
-  def create_relative_links(text, project, ref, requested_path, wiki = false)
+  def create_relative_links(text, project, ref, requested_path)
     @path_to_satellite = project.satellite.path
     project_path_with_namespace = project.path_with_namespace
     paths = extract_paths(text)

lib/redcarpet/render/gitlab_html.rb

@@ -46,8 +46,10 @@ class Redcarpet::Render::GitlabHTML < Redcarpet::Render::HTML
   end
 
   def preprocess(full_document)
-    if @project
-      h.create_relative_links(full_document, @project, @ref, @request_path, is_wiki?)
+    if is_wiki?
+      full_document
+    elsif @project
+      h.create_relative_links(full_document, @project, @ref, @request_path)
     else
       full_document
     end