diff --git a/app/models/site/repository.rb b/app/models/site/repository.rb
index 74db2549..f63288d4 100644
--- a/app/models/site/repository.rb
+++ b/app/models/site/repository.rb
@@ -147,6 +147,23 @@ class Site
       rugged.index.remove(relativize(file))
     end
 
+    # Garbage collection
+    #
+    # @return [Boolean]
+    def gc
+      env = { 'PATH' => '/usr/bin', 'LANG' => ENV['LANG'], 'HOME' => path }
+      cmd = 'git gc'
+
+      r = nil
+      Dir.chdir(path) do
+        Open3.popen2e(env, cmd, unsetenv_others: true) do |_, _, t|
+          r = t.value
+        end
+      end
+
+      r&.success?
+    end
+
     private
 
     # Si Sutty tiene una llave privada de tipo ED25519, devuelve las