diff --git a/sys/compat/linux/linux_mmap.c b/sys/compat/linux/linux_mmap.c
index 4ec297134455..59f7176d3996 100644
--- a/sys/compat/linux/linux_mmap.c
+++ b/sys/compat/linux/linux_mmap.c
@@ -113,13 +113,6 @@ linux_mmap_common(struct thread *td, uintptr_t addr, size_t len, int prot,
 	if (flags & LINUX_MAP_GROWSDOWN)
 		bsd_flags |= MAP_STACK;
 
-	/*
-	 * According to the Linux mmap(2) man page, "MAP_32BIT flag
-	 * is ignored when MAP_FIXED is set."
-	 */
-	if ((flags & LINUX_MAP_32BIT) && (flags & LINUX_MAP_FIXED) == 0)
-		bsd_flags |= MAP_32BIT;
-
 	/*
 	 * PROT_READ, PROT_WRITE, or PROT_EXEC implies PROT_READ and PROT_EXEC
 	 * on Linux/i386 if the binary requires executable stack.
diff --git a/sys/compat/linux/linux_mmap.h b/sys/compat/linux/linux_mmap.h
index 8dc123526f21..a694dc05799d 100644
--- a/sys/compat/linux/linux_mmap.h
+++ b/sys/compat/linux/linux_mmap.h
@@ -39,7 +39,6 @@
 #define	LINUX_MAP_PRIVATE	0x0002
 #define	LINUX_MAP_FIXED		0x0010
 #define	LINUX_MAP_ANON		0x0020
-#define	LINUX_MAP_32BIT		0x0040
 #define	LINUX_MAP_GROWSDOWN	0x0100
 
 #define	LINUX_PROT_GROWSDOWN	0x01000000