diff --git a/app/helpers/repositories_helper.rb b/app/helpers/repositories_helper.rb
index d9ac3746f..d05d54611 100644
--- a/app/helpers/repositories_helper.rb
+++ b/app/helpers/repositories_helper.rb
@@ -197,5 +197,13 @@ module RepositoriesHelper
   def tmp_dir
     "repo"
   end
-  
+
+  def repo_git_submodule_url(owner, repo, path)
+    unless (path.starts_with?('http://') || path.starts_with?('https://'))
+      path = File.expand_path(path, "#{base_url}/#{owner&.login}/#{repo&.identifier}")
+      path = path.split("#{Rails.root}/")[1]
+    end
+
+    return path
+  end
 end
diff --git a/app/views/repositories/_simple_entry.json.jbuilder b/app/views/repositories/_simple_entry.json.jbuilder
index 30ed9d22d..013b33a9d 100644
--- a/app/views/repositories/_simple_entry.json.jbuilder
+++ b/app/views/repositories/_simple_entry.json.jbuilder
@@ -7,6 +7,7 @@ if @project.forge?
   json.sha entry['sha']
   json.path entry['path']
   json.type entry['type']
+  json.submodule_git_url repo_git_submodule_url(@owner, @repository, entry['submodule_git_url'])
   json.size entry['size']
   is_readme = is_readme?(entry['type'], entry['name'])
   if is_readme 
diff --git a/app/views/repositories/entries.json.jbuilder b/app/views/repositories/entries.json.jbuilder
index 6dea93b32..310918597 100644
--- a/app/views/repositories/entries.json.jbuilder
+++ b/app/views/repositories/entries.json.jbuilder
@@ -51,6 +51,7 @@ if @project.forge?
       json.path entry['path']
       json.sha entry['sha']
       json.type entry['type']
+      json.submodule_git_url repo_git_submodule_url(@owner, @repository, entry['submodule_git_url'])
       json.size entry['size']
       json.is_readme_file is_readme?(entry['type'], entry['name'])
       json.content decode64_content(entry, @owner, @repository, @ref, @path)