diff --git a/build-docs.rb b/build-docs.rb
index 0720ab8..d41482d 100755
--- a/build-docs.rb
+++ b/build-docs.rb
@@ -241,8 +241,9 @@ main_pages = build_page_index(full_docs_dir, project_config['project']['docs_dir
 index_file = "#{clone_target}/index.md"
 FileUtils.cp("#{clone_target}/#{main_pages[0].values[0]}", index_file)
 index_content = File.read(index_file)
-index_new_content = index_content.gsub(/\(((?!http)\S+(\.md|\.png)(\w)?)/,
-                                       "(#{project_config['project']['docs_dir']}/\\1")
+index_new_content = index_content.gsub(/\(((?!http)\S+(\.md|\.png)(\w)?)/, "(#{project_config['project']['docs_dir']}/\\1")
+# Fix image URLs
+index_new_content = index_new_content.gsub(/(\[\!\[.*\])\(((?!http)\S+.png)\)/, "\\1(#{project_config['project']['docs_dir']}/\\2)")
 
 File.open(index_file, "w") {|file| file.puts index_new_content }
 mkdocs['nav'].push('' => "index.md")