diff --git a/LESS.lrplugin/manifest.json b/LESS.lrplugin/manifest.json
index 19457987..ae48e9d2 100644
--- a/LESS.lrplugin/manifest.json
+++ b/LESS.lrplugin/manifest.json
@@ -100,6 +100,14 @@
       ],
       "NonImportedExts": [
         "css"
+      ],
+      "Options": [
+        {
+          "Id": "source-map",
+          "Type": "checkbox",
+          "Title": "Generate sourcemap",
+          "OnArgument": "--source-map"
+        }
       ]
     }
   ]