diff --git a/toolproof/src/definitions/browser/mod.rs b/toolproof/src/definitions/browser/mod.rs
index 7a3a575..8fc5cca 100644
--- a/toolproof/src/definitions/browser/mod.rs
+++ b/toolproof/src/definitions/browser/mod.rs
@@ -73,6 +73,7 @@ impl BrowserTester {
                 let page = browser
                     .new_page(CreateTargetParams {
                         url: "about:blank".to_string(),
+                        for_tab: None,
                         width: None,
                         height: None,
                         browser_context_id: None,