diff --git a/test/CodeGen/X86/2008-05-21-CoalescerBug.ll b/test/CodeGen/X86/2008-05-21-CoalescerBug.ll
index 7b794093a6b..666c26157ac 100644
--- a/test/CodeGen/X86/2008-05-21-CoalescerBug.ll
+++ b/test/CodeGen/X86/2008-05-21-CoalescerBug.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | llc -march=x86 -fast | grep mov | count 5
+; RUN: llvm-as < %s | llc -march=x86 -fast -disable-fast-isel | grep mov | count 5
 ; PR2343
 
 	%llvm.dbg.anchor.type = type { i32, i32 }