diff --git a/lib/Reference/CardReferenceProvider.php b/lib/Reference/CardReferenceProvider.php
index 05b72edc8..f3dcac5cd 100644
--- a/lib/Reference/CardReferenceProvider.php
+++ b/lib/Reference/CardReferenceProvider.php
@@ -108,14 +108,14 @@ public function matchReference(string $referenceText): bool {
 		$startIndex = $this->urlGenerator->getAbsoluteURL('/index.php/apps/' . Application::APP_ID);
 
 		// link example: https://nextcloud.local/index.php/apps/deck/#/board/2/card/11
-		$noIndexMatch = preg_match('/^' . preg_quote($start, '/') . '\/#\/board\/[0-9]+\/card\/[0-9]+$/', $referenceText) === 1;
-		$indexMatch = preg_match('/^' . preg_quote($startIndex, '/') . '\/#\/board\/[0-9]+\/card\/[0-9]+$/', $referenceText) === 1;
+		$noIndexMatchFull = preg_match('/^' . preg_quote($start, '/') . '\/#\/board\/[0-9]+\/card\/[0-9]+$/', $referenceText) === 1;
+		$indexMatchFull = preg_match('/^' . preg_quote($startIndex, '/') . '\/#\/board\/[0-9]+\/card\/[0-9]+$/', $referenceText) === 1;
 
 		// link example: https://nextcloud.local/index.php/apps/deck/card/11
 		$noIndexMatch = preg_match('/^' . preg_quote($start, '/') . '\/card\/[0-9]+$/', $referenceText) === 1;
 		$indexMatch = preg_match('/^' . preg_quote($startIndex, '/') . '\/card\/[0-9]+$/', $referenceText) === 1;
 
-		return $noIndexMatch || $indexMatch;
+		return $noIndexMatchFull || $indexMatchFull || $noIndexMatch || $indexMatch;
 	}
 
 	/**
diff --git a/tests/unit/Reference/CardReferenceProviderTest.php b/tests/unit/Reference/CardReferenceProviderTest.php
new file mode 100644
index 000000000..3824d98af
--- /dev/null
+++ b/tests/unit/Reference/CardReferenceProviderTest.php
@@ -0,0 +1,66 @@
+<?php
+/**
+ * @copyright Copyright (c) 2023 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Reference;
+
+use OCA\Deck\Reference\CardReferenceProvider;
+use OCA\Deck\Service\BoardService;
+use OCA\Deck\Service\CardService;
+use OCA\Deck\Service\StackService;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+use Test\TestCase;
+
+class CardReferenceProviderTest extends TestCase {
+	public function setUp() : void {
+		parent::setUp();
+
+		$this->cardService = $this->createMock(CardService::class);
+		$this->boardService = $this->createMock(BoardService::class);
+		$this->stackService = $this->createMock(StackService::class);
+		$this->urlGenerator = $this->createMock(IURLGenerator::class);
+		$this->l10n = $this->createMock(IL10N::class);
+		$this->userId = null;
+
+		$this->provider = new CardReferenceProvider(
+			$this->cardService,
+			$this->boardService,
+			$this->stackService,
+			$this->urlGenerator,
+			$this->l10n,
+			$this->userId,
+		);
+	}
+
+	public function testUrl() {
+		$this->urlGenerator->expects($this->any())
+			->method('getAbsoluteURL')
+			->willReturnCallback(function ($path) {
+				return 'https://localhost/' . ltrim($path, '/');
+			});
+		self::assertFalse($this->provider->matchReference('https://nextcloud.com'));
+		self::assertTrue($this->provider->matchReference('https://localhost/apps/deck/#/board/2/card/11'));
+		self::assertTrue($this->provider->matchReference('https://localhost/index.php/apps/deck/#/board/2/card/11'));
+		self::assertTrue($this->provider->matchReference('https://localhost/apps/deck/card/11'));
+		self::assertTrue($this->provider->matchReference('https://localhost/index.php/apps/deck/card/11'));
+	}
+}