diff --git a/apps/android/boot.js b/apps/android/boot.js
index 6b7d81b72c..666cac6d37 100644
--- a/apps/android/boot.js
+++ b/apps/android/boot.js
@@ -236,8 +236,12 @@
       "listRecs": function() {
         let recs = require("Storage").list(/^recorder\.log.*\.csv$/,{sf:true}).map(s => s.slice(12, 21));
         if (event.id.length > 2) { // Handle if there was no id supplied. Then we send a list all available recorder logs back.
-          let isFirstNonsyncedIdx = recs.findIndex((logId) => logId > event.id);
-          recs = recs.slice(isFirstNonsyncedIdx+1);
+          let firstNonsyncedIdx = recs.findIndex((logId) => logId > event.id);
+          if (-1 == firstNonsyncedIdx) {
+            recs = []
+          } else {
+            recs = recs.slice(firstNonsyncedIdx);
+          }
         }
         gbSend({t:"actTrksList", list: recs}); // TODO: split up in multiple transmissions?
       },