diff --git a/poky/meta/classes/rootfs_deb.bbclass b/poky/meta/classes/rootfs_deb.bbclass
index ef616da..0469ba7 100644
--- a/poky/meta/classes/rootfs_deb.bbclass
+++ b/poky/meta/classes/rootfs_deb.bbclass
@@ -32,4 +32,8 @@
          d.setVar('DEB_SDK_ARCH', 'amd64')
     elif darch == "arm":
          d.setVar('DEB_SDK_ARCH', 'armel')
+    elif darch == "aarch64":
+         d.setVar('DEB_SDK_ARCH', 'arm64')
+    else:
+         bb.fatal("Unhandled SDK_ARCH %s" % darch)
 }