diff --git a/tests/flush-cache.S b/tests/flush-cache.S
index 470d762e..e6cf2c15 100644
--- a/tests/flush-cache.S
+++ b/tests/flush-cache.S
@@ -1,4 +1,4 @@
-#ifdef __ia64__
+#if defined(__ia64__)
 
 	.global flush_cache
 
@@ -30,4 +30,14 @@ flush_cache:
         br.ret.sptk.many rp
 	.endp flush_cache
 
+#elif defined(__i386__)
+
+	.globl flush_cache
+flush_cache:
+	ret
+
+#elif
+
+# error Need flush_cache code for this architecture.
+
 #endif