diff --git a/lib/utils/common.js b/lib/utils/common.js
index cfcaea6..5df4992 100644
--- a/lib/utils/common.js
+++ b/lib/utils/common.js
@@ -31,7 +31,11 @@ class common extends utils {
   }
 
   static quote (s) {
-    return `'${jsesc(s)}'`
+    if (typeof s === 'string') {
+      return `'${jsesc(s)}'`
+    } else {
+      return jsesc(s)
+    }
   }
 
   static b64encode (str) {
diff --git a/package.json b/package.json
index ccf9b1b..00efd83 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mozillasecurity/octo",
-  "version": "1.0.13",
+  "version": "1.0.14",
   "description": "",
   "keywords": [
     "fuzzing",