diff --git a/src/unix/linux-syscalls.h b/src/unix/linux-syscalls.h
index ba44974a..62eb5c5a 100644
--- a/src/unix/linux-syscalls.h
+++ b/src/unix/linux-syscalls.h
@@ -43,7 +43,7 @@
 #if defined(__alpha__)
 # define UV__O_NONBLOCK       0x4
 #elif defined(__hppa__)
-# define UV__O_NONBLOCK       0x10004
+# define UV__O_NONBLOCK       O_NONBLOCK
 #elif defined(__mips__)
 # define UV__O_NONBLOCK       0x80
 #elif defined(__sparc__)
@@ -59,7 +59,11 @@
 #define UV__IN_NONBLOCK       UV__O_NONBLOCK
 
 #define UV__SOCK_CLOEXEC      UV__O_CLOEXEC
-#define UV__SOCK_NONBLOCK     UV__O_NONBLOCK
+#if defined(SOCK_NONBLOCK)
+# define UV__SOCK_NONBLOCK    SOCK_NONBLOCK
+#else
+# define UV__SOCK_NONBLOCK    UV__O_NONBLOCK
+#endif
 
 /* epoll flags */
 #define UV__EPOLL_CLOEXEC     UV__O_CLOEXEC