--- configure.ac
+++ configure.ac
@@ -100,7 +100,7 @@
 case "${host_os}" in
   *linux* )
     case "${host_cpu}" in
-      powerpc64 | s390x | x86_64 | sparc64 )
+      aarch64 | powerpc64 | s390x | x86_64 | sparc64 )
         LIBPOSTFIX="64"
         ;;
     esac