diff --git a/phpunit.xml b/phpunit.xml
deleted file mode 100644
index 44332c9cf..000000000
--- a/phpunit.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<phpunit bootstrap="tests/bootstrap.php" colors="true" testdox="true">
-   <testsuites>
-      <testsuite name="Units">
-         <directory>tests/units</directory>
-      </testsuite>
-   </testsuites>
-</phpunit>
\ No newline at end of file
diff --git a/src/Install.php b/src/Install.php
index a3b8e478f..58f918829 100644
--- a/src/Install.php
+++ b/src/Install.php
@@ -491,6 +491,14 @@ protected function deleteTables() {
       $displayPreference->deleteByCriteria(['itemtype' => 'PluginFormcreatorIssue']);
    }
 
+   protected function deleteMiniDashboard(): bool {
+      $dashboard = new Dashboard();
+
+      return $dashboard->deleteByCriteria([
+         'key' => 'plugin_formcreator_issue_counters'
+      ]);
+   }
+
    /**
     * http://stackoverflow.com/questions/834303/startswith-and-endswith-functions-in-php
     * @param string $haystack
@@ -508,6 +516,7 @@ public function uninstall() {
       $this->deleteTicketRelation();
       $this->deleteTables();
       $this->deleteNotifications();
+      $this->deleteMiniDashboard();
 
       $config = new Config();
       $config->deleteByCriteria(['context' => 'formcreator']);