diff --git a/tests/flush-cache.S b/tests/flush-cache.S
index e6cf2c15..d8f28c86 100644
--- a/tests/flush-cache.S
+++ b/tests/flush-cache.S
@@ -30,14 +30,12 @@ flush_cache:
         br.ret.sptk.many rp
 	.endp flush_cache
 
-#elif defined(__i386__)
+#elif defined(__i386__) || defined (__x86_64__)
 
 	.globl flush_cache
 flush_cache:
 	ret
 
-#elif
-
+#else
 # error Need flush_cache code for this architecture.
-
 #endif