diff --git a/tools/commands-cordova.js b/tools/commands-cordova.js
index 53566a6506..6f56d61e82 100644
--- a/tools/commands-cordova.js
+++ b/tools/commands-cordova.js
@@ -466,7 +466,7 @@ var installPlugin = function (cordovaPath, name, version, conf) {
 
   _.each(conf || {}, function (value, variable) {
     additionalArgs.push('--variable');
-    additionalArgs.push(variable + '=\'' + value + '\'');
+    additionalArgs.push(variable + '=' + value);
   });
 
   var execRes = execFileSyncOrThrow(localCordova,