diff --git a/app/models/deploy_local.rb b/app/models/deploy_local.rb
index 4fa588f5..1b661059 100644
--- a/app/models/deploy_local.rb
+++ b/app/models/deploy_local.rb
@@ -28,15 +28,17 @@ class DeployLocal < Deploy
   # Obtener el tamaño de todos los archivos y directorios (los
   # directorios son archivos :)
   def size
-    paths = [destination, File.join(destination, '**', '**')]
+    @size ||= begin
+      paths = [destination, File.join(destination, '**', '**')]
 
-    Dir.glob(paths).map do |file|
-      if File.symlink? file
-        0
-      else
-        File.size(file)
-      end
-    end.inject(:+)
+      Dir.glob(paths).map do |file|
+        if File.symlink? file
+          0
+        else
+          File.size(file)
+        end
+      end.inject(:+)
+    end
   end
 
   def destination