diff --git a/configure.ac b/configure.ac
index f507883..40a57d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -194,6 +194,8 @@ changequote([,])dnl
 	s390) NO_UNALIGNED_ACCESS=1 ;;
 	s390x) NO_UNALIGNED_ACCESS=1 ;;
         arm*) NO_UNALIGNED_ACCESS=1 ;;
+        aarch64) NO_UNALIGNED_ACCESS=1 ;;
+        aarch64_be) NO_UNALIGNED_ACCESS=1 ;;
 	mips*) NO_UNALIGNED_ACCESS=1 ;;
 	tile*) NO_UNALIGNED_ACCESS=1 ;;
 	*) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;