Index: head/sys/compat/linux/linux_file.h
===================================================================
--- head/sys/compat/linux/linux_file.h
+++ head/sys/compat/linux/linux_file.h
@@ -76,7 +76,7 @@
 #define	LINUX_O_NONBLOCK	00004000
 #define	LINUX_O_NDELAY		LINUX_O_NONBLOCK
 #define	LINUX_O_SYNC		00010000
-#define	LINUX_FASYNC		00020000
+#define	LINUX_O_ASYNC		00020000
 #define	LINUX_O_DIRECT		00040000	/* Direct disk access hint */
 #define	LINUX_O_LARGEFILE	00100000
 #define	LINUX_O_DIRECTORY	00200000	/* Must be a directory */
Index: head/sys/compat/linux/linux_file.c
===================================================================
--- head/sys/compat/linux/linux_file.c
+++ head/sys/compat/linux/linux_file.c
@@ -113,7 +113,7 @@
 		bsd_flags |= O_CLOEXEC;
 	if (l_flags & LINUX_O_NONBLOCK)
 		bsd_flags |= O_NONBLOCK;
-	if (l_flags & LINUX_FASYNC)
+	if (l_flags & LINUX_O_ASYNC)
 		bsd_flags |= O_ASYNC;
 	if (l_flags & LINUX_O_CREAT)
 		bsd_flags |= O_CREAT;
@@ -1286,7 +1286,7 @@
 		if (result & O_FSYNC)
 			td->td_retval[0] |= LINUX_O_SYNC;
 		if (result & O_ASYNC)
-			td->td_retval[0] |= LINUX_FASYNC;
+			td->td_retval[0] |= LINUX_O_ASYNC;
 #ifdef LINUX_O_NOFOLLOW
 		if (result & O_NOFOLLOW)
 			td->td_retval[0] |= LINUX_O_NOFOLLOW;
@@ -1305,7 +1305,7 @@
 			arg |= O_APPEND;
 		if (args->arg & LINUX_O_SYNC)
 			arg |= O_FSYNC;
-		if (args->arg & LINUX_FASYNC)
+		if (args->arg & LINUX_O_ASYNC)
 			arg |= O_ASYNC;
 #ifdef LINUX_O_NOFOLLOW
 		if (args->arg & LINUX_O_NOFOLLOW)