diff --git a/src/buildApp.js b/src/buildApp.js
index 7ca7861..4bb0c27 100644
--- a/src/buildApp.js
+++ b/src/buildApp.js
@@ -60,7 +60,12 @@ function buildApp(options, callback) {
             packager(options, callback);
         },
 
-        (appPath, callback) => {
+        (appPathArray, callback) => {
+            // somehow appPathArray is a 1 element array
+            if (appPathArray.length !== 1) {
+                console.warn('Warning: Packaged app path contains more than one element', appPathArray);
+            }
+            const appPath = appPathArray[0];
             callback(null, appPath);
         }
     ], callback);