diff --git a/app_database.sql b/app_database.sql
index d17dd56..5c43521 100644
--- a/app_database.sql
+++ b/app_database.sql
@@ -22,6 +22,7 @@ CREATE TABLE device_tokens (
     last_seen_at TIMESTAMP NULL DEFAULT NULL,
     last_successful_delivery TIMESTAMP NULL DEFAULT NULL,
     last_failed_delivery TIMESTAMP NULL DEFAULT NULL,
+    hashed_token VARCHAR(64) NOT NULL,
 
     CONSTRAINT fk_user FOREIGN KEY (user_id) REFERENCES users(user_id)
         ON DELETE CASCADE