diff --git a/ChangeLog b/ChangeLog
index 8b76a6dde8..4cec993f99 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2017-07-23  Nathan Rossi  <nathan@nathanrossi.com>
 
+	[BZ #21779]
+	* sysdeps/unix/sysv/linux/microblaze/pt-vfork.S: Branch using PLT.
+
 	* sysdeps/microblaze/libm-test-ulps: Update.
 
 2017-07-28  Chung-Lin Tang  <cltang@codesourcery.com>
diff --git a/sysdeps/unix/sysv/linux/microblaze/pt-vfork.S b/sysdeps/unix/sysv/linux/microblaze/pt-vfork.S
index f201f0429f..d8339f21f7 100644
--- a/sysdeps/unix/sysv/linux/microblaze/pt-vfork.S
+++ b/sysdeps/unix/sysv/linux/microblaze/pt-vfork.S
@@ -34,7 +34,7 @@
        || SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_20))
 
 ENTRY (vfork_compat)
-	bri	__libc_vfork
+	bri	__libc_vfork@PLT
 END (vfork_compat)
 
 #endif