diff --git a/libc/kernel/uapi/linux/v4l2-subdev.h b/libc/kernel/uapi/linux/v4l2-subdev.h
index b1d1175..d684a54 100644
--- a/libc/kernel/uapi/linux/v4l2-subdev.h
+++ b/libc/kernel/uapi/linux/v4l2-subdev.h
@@ -103,7 +103,7 @@
   __u64 routes;
   __u32 reserved[6];
 };
-#define V4L2_SUBDEV_CLIENT_CAP_STREAMS (1U << 0)
+#define V4L2_SUBDEV_CLIENT_CAP_STREAMS (1ULL << 0)
 struct v4l2_subdev_client_capability {
   __u64 capabilities;
 };