diff --git a/custom_components/battery_notes/data/library.json b/custom_components/battery_notes/data/library.json
index 0341dced0..2a30e010b 100644
--- a/custom_components/battery_notes/data/library.json
+++ b/custom_components/battery_notes/data/library.json
@@ -47,7 +47,7 @@
         },        {
             "manufacturer": "Google",
             "model": "Topaz-2.7",
-            "battery_type": "AA"
+            "battery_type": "AA",
             "battery_quantity": 3
         },
         {