diff --git a/dotnet/src/webdriver/BiDi/Browser/BrowserModule.cs b/dotnet/src/webdriver/BiDi/Browser/BrowserModule.cs
index 51ce4e082a0de..99450f26c739a 100644
--- a/dotnet/src/webdriver/BiDi/Browser/BrowserModule.cs
+++ b/dotnet/src/webdriver/BiDi/Browser/BrowserModule.cs
@@ -31,7 +31,7 @@ public async Task CloseAsync(CloseOptions? options = null)
 
     public async Task<UserContextInfo> CreateUserContextAsync(CreateUserContextOptions? options = null)
     {
-        var @params = new CreateUserContextCommandParameters(options?.AcceptInsecureCerts, options?.Proxy);
+        var @params = new CreateUserContextCommandParameters(options?.AcceptInsecureCerts, options?.Proxy, options?.UnhandledPromptBehavior);
 
         return await Broker.ExecuteCommandAsync<CreateUserContextCommand, UserContextInfo>(new CreateUserContextCommand(@params), options).ConfigureAwait(false);
     }
diff --git a/dotnet/src/webdriver/BiDi/Browser/CreateUserContextCommand.cs b/dotnet/src/webdriver/BiDi/Browser/CreateUserContextCommand.cs
index 278dd44009cba..9259d2457c947 100644
--- a/dotnet/src/webdriver/BiDi/Browser/CreateUserContextCommand.cs
+++ b/dotnet/src/webdriver/BiDi/Browser/CreateUserContextCommand.cs
@@ -24,11 +24,13 @@ namespace OpenQA.Selenium.BiDi.Browser;
 internal sealed class CreateUserContextCommand(CreateUserContextCommandParameters @params)
     : Command<CreateUserContextCommandParameters, UserContextInfo>(@params, "browser.createUserContext");
 
-internal sealed record CreateUserContextCommandParameters(bool? AcceptInsecureCerts, Session.ProxyConfiguration? Proxy) : CommandParameters;
+internal sealed record CreateUserContextCommandParameters(bool? AcceptInsecureCerts, Session.ProxyConfiguration? Proxy, Session.UserPromptHandler? UnhandledPromptBehavior) : CommandParameters;
 
 public sealed class CreateUserContextOptions : CommandOptions
 {
     public bool? AcceptInsecureCerts { get; set; }
 
     public Session.ProxyConfiguration? Proxy { get; set; }
+
+    public Session.UserPromptHandler? UnhandledPromptBehavior { get; set; }
 }