diff --git a/include/poll.h b/include/poll.h
index f868ab57..36ef7fee 100644
--- a/include/poll.h
+++ b/include/poll.h
@@ -17,7 +17,7 @@ extern "C" {
 #define POLLWRBAND 0x200
 #define POLLMSG    0x400
 
-typedef unsigned int nfds_t;
+typedef unsigned long nfds_t;
 
 struct pollfd
 {