diff --git a/Resources/migrations/VersionAuthserverStats20171102211018.php b/Resources/migrations/VersionAuthserverStats20171102211018.php
index 311da6a..28fa601 100644
--- a/Resources/migrations/VersionAuthserverStats20171102211018.php
+++ b/Resources/migrations/VersionAuthserverStats20171102211018.php
@@ -29,7 +29,9 @@ class VersionAuthserverStats20171102211018 extends AbstractMigration
     {
         $loginEntry = $schema->getTable('vierbergenlars_stats_login_entry');
 
-        $loginEntry->removeForeignKey('vl_stats_le');
+        if ($loginEntry->hasForeignKey('vl_stats_le')) {
+            $loginEntry->removeForeignKey('vl_stats_le');
+        }
         $loginEntry->getColumn('user_id')->setNotNull(false);
 
         $loginEntry->addForeignKeyConstraint('auth_users', [
@@ -45,7 +47,9 @@ class VersionAuthserverStats20171102211018 extends AbstractMigration
     {
         $loginEntry = $schema->getTable('vierbergenlars_stats_login_entry');
 
-        $loginEntry->removeForeignKey('vl_stats_le');
+        if ($loginEntry->hasForeignKey('vl_stats_le')) {
+            $loginEntry->removeForeignKey('vl_stats_le');
+        }
         $loginEntry->getColumn('user_id')->setNotNull(true);
 
         $loginEntry->addForeignKeyConstraint('auth_users', [