diff --git a/lib/android.js b/lib/android.js
index 39a6ee26..76355b9d 100644
--- a/lib/android.js
+++ b/lib/android.js
@@ -612,9 +612,10 @@ function memoize (compute) {
   return function (...args) {
     if (!computed) {
       value = compute(...args);
-      computed = true;
+      if(value != null) {
+        computed = true;
+      }
     }
-
     return value;
   };
 }