diff --git a/lib/Notification/Notifier.php b/lib/Notification/Notifier.php
index 379b05950..0c999a57d 100644
--- a/lib/Notification/Notifier.php
+++ b/lib/Notification/Notifier.php
@@ -125,7 +125,7 @@ public function prepare(INotification $notification, string $languageCode): INot
 						]
 					]
 				);
-				$notification->setLink($this->getCardUrl($boardId, $cardId));
+				$notification->setLink($this->getCardRedirectUrl($cardId));
 				break;
 			case 'card-overdue':
 				$cardId = (int)$notification->getObjectId();
@@ -157,7 +157,7 @@ public function prepare(INotification $notification, string $languageCode): INot
 						],
 					]
 				);
-				$notification->setLink($this->getCardUrl($boardId, $cardId));
+				$notification->setLink($this->getCardRedirectUrl($cardId));
 				break;
 			case 'card-comment-mentioned':
 				$cardId = (int)$notification->getObjectId();
@@ -197,7 +197,7 @@ public function prepare(INotification $notification, string $languageCode): INot
 				if ($notification->getMessage() === '{message}') {
 					$notification->setParsedMessage($notification->getMessageParameters()['message']);
 				}
-				$notification->setLink($this->getCardUrl($boardId, $cardId));
+				$notification->setLink($this->getCardRedirectUrl($cardId));
 				break;
 			case 'board-shared':
 				$boardId = (int)$notification->getObjectId();
@@ -253,4 +253,8 @@ private function getBoardUrl(int $boardId): string {
 	private function getCardUrl(int $boardId, int $cardId): string {
 		return $this->url->linkToRouteAbsolute('deck.page.indexCard', ['boardId' => $boardId, 'cardId' => $cardId]);
 	}
+
+	private function getCardRedirectUrl(int $cardId): string {
+		return $this->url->linkToRouteAbsolute('deck.page.redirectToCard', ['cardId' => $cardId]);
+	}
 }
diff --git a/tests/unit/Notification/NotifierTest.php b/tests/unit/Notification/NotifierTest.php
index 491f78d6e..6a42876cb 100644
--- a/tests/unit/Notification/NotifierTest.php
+++ b/tests/unit/Notification/NotifierTest.php
@@ -83,6 +83,7 @@ public function setUp(): void {
 				return match ($route) {
 					'deck.page.indexBoard' => '/board/123',
 					'deck.page.indexCard' => '/board/123/card/234',
+					'deck.page.redirectToCard' => '/card/234',
 				};
 			});
 	}
@@ -135,6 +136,9 @@ public function testPrepareCardOverdue() {
 		$notification->expects($this->once())
 			->method('setIcon')
 			->with('/absolute/deck-dark.svg');
+		$notification->expects($this->once())
+			->method('setLink')
+			->with('/card/123');
 
 		$actualNotification = $this->notifier->prepare($notification, 'en_US');
 
@@ -351,6 +355,47 @@ public function testPrepareBoardShared($withUserFound = true) {
 		$this->assertEquals($notification, $actualNotification);
 	}
 
+	public function testPrepareCardAssignedUsesRedirectUrl() {
+		/** @var INotification|MockObject $notification */
+		$notification = $this->createMock(INotification::class);
+		$notification->expects($this->once())
+			->method('getApp')
+			->willReturn('deck');
+
+		$notification->expects($this->once())
+			->method('getSubjectParameters')
+			->willReturn(['Card title','Board title', 'admin']);
+
+		$notification->expects($this->once())
+			->method('getSubject')
+			->willReturn('card-assigned');
+		$notification->expects($this->once())
+			->method('getObjectId')
+			->willReturn('123');
+		$this->stackMapper->expects($this->once())
+			->method('findStackFromCardId')
+			->willReturn($this->buildMockStack());
+
+		$this->url->expects($this->once())
+			->method('imagePath')
+			->with('deck', 'deck-dark.svg')
+			->willReturn('deck-dark.svg');
+		$this->url->expects($this->once())
+			->method('getAbsoluteURL')
+			->with('deck-dark.svg')
+			->willReturn('/absolute/deck-dark.svg');
+		$notification->expects($this->once())
+			->method('setIcon')
+			->with('/absolute/deck-dark.svg');
+		$notification->expects($this->once())
+			->method('setLink')
+			->with('/card/123');
+
+		$actualNotification = $this->notifier->prepare($notification, 'en_US');
+
+		$this->assertEquals($notification, $actualNotification);
+	}
+
 	/**
 	 * @param int $boardId
 	 * @return Stack|MockObject