diff --git a/server/sql/tables.sql b/server/sql/tables.sql
index 75618d2..abe6c56 100644
--- a/server/sql/tables.sql
+++ b/server/sql/tables.sql
@@ -13,7 +13,7 @@ CREATE TABLE IF NOT EXISTS lp_ttn_end_device_uplinks (
     updated_at_utc TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
 );
 
-CREATE UNIQUE INDEX idx_unique_device ON lp_ttn_end_device_uplinks (
+CREATE UNIQUE INDEX IF NOT EXISTS idx_unique_device ON lp_ttn_end_device_uplinks (
     device_id,
     application_ids,
     dev_eui,