diff --git a/lib/open.js b/lib/open.js
index aa23a3e..4c56953 100644
--- a/lib/open.js
+++ b/lib/open.js
@@ -52,7 +52,7 @@ function open(target, appName, callback) {
     break;
   }
 
-  return exec(opener + ' "' + escape(target) + '"', callback);
+  return exec('"' + escape(opener) + '" "' + escape(target) + '"', callback);
 }
 
 function escape(s) {