diff --git a/lib/pbxWriter.js b/lib/pbxWriter.js
index a65bcf1..b1d9bdf 100644
--- a/lib/pbxWriter.js
+++ b/lib/pbxWriter.js
@@ -180,6 +180,9 @@ pbxWriter.prototype.writeArray = function (arr, name) {
     for (i=0; i < arr.length; i++) {
         entry = arr[i]
 
+        if(!entry){
+            continue;
+        }
         if (entry.value && entry.comment) {
             this.write('%s /* %s */,\n', entry.value, entry.comment);
         } else if (isObject(entry)) {