diff --git a/install/generator-cyphernode/generators/app/index.js b/install/generator-cyphernode/generators/app/index.js
index 300dd94..1a92700 100644
--- a/install/generator-cyphernode/generators/app/index.js
+++ b/install/generator-cyphernode/generators/app/index.js
@@ -8,7 +8,7 @@ const path = require("path");
 const featureChoices = require(path.join(__dirname, "features.json"));
 const coinstring = require('coinstring');
 
-const uaCommentRegexp = /^[a-zA-Z0-9 \.,:_\?@]+$/
+const uaCommentRegexp = /^[a-zA-Z0-9 \.,:_\-\?\/@]+$/; // TODO: look for spec of unsafe chars
 
 let prompters = [];
 const normalizedPath = path.join(__dirname, "prompters");