diff --git a/sys/libkern/arm/memclr.S b/sys/libkern/arm/memclr.S
index 2883d3f23104..0f01b0b6ad5e 100644
--- a/sys/libkern/arm/memclr.S
+++ b/sys/libkern/arm/memclr.S
@@ -1,42 +1,44 @@
 /*
  * Copyright (C) 2015 Andrew Turner
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
  */
 
 #include <machine/asm.h>
 __FBSDID("$FreeBSD$");
 
 /*
  * This implements
  *  void __aeabi_memclr4(void *dest, size_t len)
  * by calling:
- *  void bzero(dest, len)
+ *  void *memset(dest, 0, len)
  */
 ENTRY_NP(__aeabi_memclr4)
 EENTRY_NP(__aeabi_memclr8)
-	b	bzero
+	mov	r2, r1
+	mov	r1, #0
+	b	memset
 EEND(__aeabi_memclr8)
 END(__aeabi_memclr4)