diff --git a/core/Migrations/Version13000Date20170718121200.php b/core/Migrations/Version13000Date20170718121200.php
index 9a1815c09a..481de74b21 100644
--- a/core/Migrations/Version13000Date20170718121200.php
+++ b/core/Migrations/Version13000Date20170718121200.php
@@ -468,6 +468,12 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 			]);
 			$table->setPrimaryKey(['id']);
 			$table->addIndex(['class'], 'job_class_index');
+		} else {
+			$table = $schema->getTable('jobs');
+			$table->changeColumn('execution_duration', [
+				'notnull' => true,
+				'default' => 0,
+			]);
 		}
 
 		if (!$schema->hasTable('users')) {