diff --git a/packages/taler-wallet-core/src/db.ts b/packages/taler-wallet-core/src/db.ts
index bde386766..6a42cabcb 100644
--- a/packages/taler-wallet-core/src/db.ts
+++ b/packages/taler-wallet-core/src/db.ts
@@ -2553,7 +2553,7 @@ function upgradeFromStoreMap(
         } catch (e) {
           const moreInfo = e instanceof Error ? ` Reason: ${e.message}` : "";
           throw Error(
-            `Migration failed. Could not create index ${indexDesc.name}/${indexDesc.keyPath}.${moreInfo}`,
+            `Migration failed. Could not create index ${indexDesc.name}/${indexDesc.keyPath}. ${moreInfo}`,
           );
         }
       }