diff --git a/test/Assembler/2004-12-06-ConstantFloatRange.ll b/test/Assembler/2004-12-06-ConstantFloatRange.ll
index 61f2b77b3f9..30d103c5728 100644
--- a/test/Assembler/2004-12-06-ConstantFloatRange.ll
+++ b/test/Assembler/2004-12-06-ConstantFloatRange.ll
@@ -1,4 +1,5 @@
 ; RUN: llvm-as %s -o /dev/null 2>&1 | grep "constant invalid for type"
+; XFAIL: *
 
 ;; This is a testcase for PR409