diff --git a/Fervor/Sources/Fervor/FervorClient.swift b/Fervor/Sources/Fervor/FervorClient.swift
index 4bd4005..2636767 100644
--- a/Fervor/Sources/Fervor/FervorClient.swift
+++ b/Fervor/Sources/Fervor/FervorClient.swift
@@ -103,9 +103,11 @@ public actor FervorClient: Sendable {
     }
     
     public func syncItems(lastSync: Date?) async throws -> ItemsSyncUpdate {
-        let request = URLRequest(url: buildURL(path: "/api/v1/items/sync", queryItems: [
-            URLQueryItem(name: "last_sync", value: lastSync?.formatted(.iso8601))
-        ]))
+        var query: [URLQueryItem] = []
+        if let lastSync {
+            query.append(URLQueryItem(name: "last_sync", value: lastSync.formatted(.iso8601)))
+        }
+        let request = URLRequest(url: buildURL(path: "/api/v1/items/sync", queryItems: query))
         return try await performRequest(request)
     }