diff --git a/lib/Migration/Version1Date20241111144800.php b/lib/Migration/Version1Date20241111144800.php
index 69a8e44..9eb4651 100644
--- a/lib/Migration/Version1Date20241111144800.php
+++ b/lib/Migration/Version1Date20241111144800.php
@@ -101,10 +101,17 @@ public function postSchemaChange(IOutput $output, Closure $schemaClosure, array
 			&& $table->hasColumn('source_id') === true && $table->hasColumn('source_hash') === true
 		) {
 			$this->connection->executeQuery("
-			UPDATE openconnector_synchronization_contracts
-			SET origin_id = source_id, origin_hash = source_hash
-			WHERE source_id IS NOT NULL
-		");
+				UPDATE openconnector_synchronization_contracts
+				SET origin_id = source_id, origin_hash = source_hash
+				WHERE source_id IS NOT NULL
+			");
+		}
+
+		if ($table->hasColumn('source_id') === true) {
+			$table->dropColumn('source_id');
+		}
+		if ($table->hasColumn('source_hash') === true) {
+			$table->dropColumn('source_hash');
 		}
 	}
 }
diff --git a/lib/Migration/Version1Date20241112143200.php b/lib/Migration/Version1Date20241112143200.php
deleted file mode 100644
index 3775bbd..0000000
--- a/lib/Migration/Version1Date20241112143200.php
+++ /dev/null
@@ -1,63 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-/**
- * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
- * SPDX-License-Identifier: AGPL-3.0-or-later
- */
-
-namespace OCA\OpenConnector\Migration;
-
-use Closure;
-use OCP\DB\ISchemaWrapper;
-use OCP\DB\Types;
-use OCP\Migration\IOutput;
-use OCP\Migration\SimpleMigrationStep;
-use OCP\IDBConnection;
-
-/**
- * This migration changes the following:
- * - Removing of SynchronizationContract columns sourceId & sourceHash
- */
-class Version1Date20241112143200 extends SimpleMigrationStep {
-
-	private IDBConnection $connection;
-
-	public function __construct(IDBConnection $connection) {
-		$this->connection = $connection;
-	}
-
-	/**
-	 * @param IOutput $output
-	 * @param Closure(): ISchemaWrapper $schemaClosure
-	 * @param array $options
-	 */
-	public function preSchemaChange(IOutput $output, Closure $schemaClosure, array $options): void {
-	}
-
-	/**
-	 * @param IOutput $output
-	 * @param Closure(): ISchemaWrapper $schemaClosure
-	 * @param array $options
-	 * @return null|ISchemaWrapper
-	 */
-	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
-
-		// Step 3: Drop the old columns after data migration
-		/**
-		 * @var ISchemaWrapper $schema
-		 */
-		$schema = $schemaClosure();
-		$table = $schema->getTable('openconnector_synchronization_contracts');
-
-		if ($table->hasColumn('source_id') === true) {
-			$table->dropColumn('source_id');
-		}
-		if ($table->hasColumn('source_hash') === true) {
-			$table->dropColumn('source_hash');
-		}
-
-		return $schema;
-	}
-}