diff --git a/packages/integrations/src/nextcloud/nextcloud-url.ts b/packages/integrations/src/nextcloud/nextcloud-url.ts
index 7de9a5899..b276cb236 100644
--- a/packages/integrations/src/nextcloud/nextcloud-url.ts
+++ b/packages/integrations/src/nextcloud/nextcloud-url.ts
@@ -1,8 +1,11 @@
 export const createNextcloudCalendarServerUrl = (integrationUrl: string) => {
   const calendarServerUrl = new URL(integrationUrl);
   const integrationPath = calendarServerUrl.pathname.replace(/\/+$/, "");
+  const davPath = "/remote.php/dav";
 
-  calendarServerUrl.pathname = `${integrationPath}/remote.php/dav/`;
+  calendarServerUrl.pathname = integrationPath.endsWith(davPath)
+    ? `${integrationPath}/`
+    : `${integrationPath}${davPath}/`;
   calendarServerUrl.search = "";
   calendarServerUrl.hash = "";
 
diff --git a/packages/integrations/src/nextcloud/test/nextcloud-url.spec.ts b/packages/integrations/src/nextcloud/test/nextcloud-url.spec.ts
index da5e9fe69..9546b5662 100644
--- a/packages/integrations/src/nextcloud/test/nextcloud-url.spec.ts
+++ b/packages/integrations/src/nextcloud/test/nextcloud-url.spec.ts
@@ -20,4 +20,10 @@ describe("createNextcloudCalendarServerUrl", () => {
       "https://example.com/nextcloud/remote.php/dav/",
     );
   });
+
+  test("does not duplicate an existing DAV endpoint", () => {
+    expect(createNextcloudCalendarServerUrl("https://example.com/nextcloud/remote.php/dav")).toBe(
+      "https://example.com/nextcloud/remote.php/dav/",
+    );
+  });
 });