diff --git a/src/browser/webapi/global_event_handlers.zig b/src/browser/webapi/global_event_handlers.zig
index e92dad6f..44123a50 100644
--- a/src/browser/webapi/global_event_handlers.zig
+++ b/src/browser/webapi/global_event_handlers.zig
@@ -23,6 +23,8 @@ const js = @import("../js/js.zig");
 
 const EventTarget = @import("EventTarget.zig");
 
+const IS_DEBUG = @import("builtin").mode == .Debug;
+
 const Key = struct {
     target: *EventTarget,
     handler: Handler,
@@ -32,12 +34,16 @@ const Key = struct {
     /// See `Context.hash`.
     fn fuse(self: *const Key) u64 {
         // Check if we have 3 bits available from alignment of 8.
-        lp.assert(@alignOf(EventTarget) == 8, "Key.fuse: incorrect alignment", .{
-            .event_target_alignment = @alignOf(EventTarget),
-        });
+        if (comptime IS_DEBUG) {
+            lp.assert(@alignOf(EventTarget) == 8, "Key.fuse: incorrect alignment", .{
+                .event_target_alignment = @alignOf(EventTarget),
+            });
+        }
 
         const ptr = @intFromPtr(self.target) >> 3;
-        lp.assert(ptr < (1 << 57), "Key.fuse: pointer overflow", .{ .ptr = ptr });
+        if (comptime IS_DEBUG) {
+            lp.assert(ptr < (1 << 57), "Key.fuse: pointer overflow", .{ .ptr = ptr });
+        }
         return ptr | (@as(u64, @intFromEnum(self.handler)) << 57);
     }
 };