1 files changed, 5 insertions, 1 deletions
diff --git a/src/util/query.ts b/src/util/query.ts
index 8dd3ff1e2..401d22e71 100644
--- a/src/util/query.ts
+++ b/src/util/query.ts
@@ -431,7 +431,11 @@ export function openDatabase(
     };
     req.onupgradeneeded = (e) => {
       const db = req.result;
-      onUpgradeNeeded(db, e.oldVersion, e.newVersion!);
+      const newVersion = e.newVersion;
+      if (!newVersion) {
+        throw Error("upgrade needed, but new version unknown");
+      }
+      onUpgradeNeeded(db, e.oldVersion, newVersion);
       console.log(
         `DB: upgrade needed: oldVersion=${e.oldVersion}, newVersion=${e.newVersion}`,
       );