diff --git a/src/browser/webapi/Event.zig b/src/browser/webapi/Event.zig
index 2264ba41..bbac984d 100644
--- a/src/browser/webapi/Event.zig
+++ b/src/browser/webapi/Event.zig
@@ -175,6 +175,7 @@ pub fn is(self: *Event, comptime T: type) ?*T {
         .page_transition_event => |e| return if (T == @import("event/PageTransitionEvent.zig")) e else null,
         .pop_state_event => |e| return if (T == @import("event/PopStateEvent.zig")) e else null,
         .promise_rejection_event => |e| return if (T == @import("event/PromiseRejectionEvent.zig")) e else null,
+        .submit_event => |e| return if (T == @import("event/SubmitEvent.zig")) e else null,
         .ui_event => |e| {
             if (T == @import("event/UIEvent.zig")) {
                 return e;