diff --git a/src/unix/redox/mod.rs b/src/unix/redox/mod.rs
index 09abf54ed50eb..d946f46524293 100644
--- a/src/unix/redox/mod.rs
+++ b/src/unix/redox/mod.rs
@@ -528,6 +528,10 @@ pub const POLLOUT: ::c_short = 0x004;
 pub const POLLERR: ::c_short = 0x008;
 pub const POLLHUP: ::c_short = 0x010;
 pub const POLLNVAL: ::c_short = 0x020;
+pub const POLLRDNORM: ::c_short = 0x040;
+pub const POLLRDBAND: ::c_short = 0x080;
+pub const POLLWRNORM: ::c_short = 0x100;
+pub const POLLWRBAND: ::c_short = 0x200;
 
 // pthread.h
 pub const PTHREAD_MUTEX_NORMAL: ::c_int = 0;