diff --git a/src/browser/webapi/element/Html.zig b/src/browser/webapi/element/Html.zig
index ea962c9e..40f70b67 100644
--- a/src/browser/webapi/element/Html.zig
+++ b/src/browser/webapi/element/Html.zig
@@ -387,22 +387,17 @@ pub fn getAttributeFunction(
     }
 
     const attr = element.getAttributeSafe(.wrap(@tagName(listener_type))) orelse return null;
-    const callback = page.js.stringToPersistedFunction(attr) catch |err| switch (err) {
-        error.OutOfMemory => return err,
-        else => {
-            // Not a valid expression; log this to find out if its something we should be supporting.
-            log.warn(.js, "Html.getAttributeFunction", .{
-                .expression = attr,
-                .err = err,
-            });
-
-            return null;
-        },
+    const function = page.js.stringToPersistedFunction(attr, &.{"event"}, &.{}) catch |err| {
+        // Not a valid expression; log this to find out if its something we should be supporting.
+        log.warn(.js, "Html.getAttributeFunction", .{
+            .expression = attr,
+            .err = err,
+        });
+        return null;
     };
 
-    try self.setAttributeListener(listener_type, callback, page);
-
-    return callback;
+    try self.setAttributeListener(listener_type, function, page);
+    return function;
 }
 
 pub fn hasAttributeFunction(self: *HtmlElement, listener_type: GlobalEventHandler, page: *const Page) bool {
diff --git a/src/browser/webapi/element/html/Body.zig b/src/browser/webapi/element/html/Body.zig
index 7b5b530e..dccb892d 100644
--- a/src/browser/webapi/element/html/Body.zig
+++ b/src/browser/webapi/element/html/Body.zig
@@ -50,7 +50,7 @@ pub const Build = struct {
     pub fn complete(node: *Node, page: *Page) !void {
         const el = node.as(Element);
         const on_load = el.getAttributeSafe(comptime .wrap("onload")) orelse return;
-        if (page.js.stringToPersistedFunction(on_load)) |func| {
+        if (page.js.stringToPersistedFunction(on_load, &.{"event"}, &.{})) |func| {
             page.window._on_load = func;
         } else |err| {
             log.err(.js, "body.onload", .{ .err = err, .str = on_load });