diff --git a/test/Transforms/InstCombine/gep-addrspace.ll b/test/Transforms/InstCombine/gep-addrspace.ll
index 4c971072cfb..dfe12dbfaf7 100644
--- a/test/Transforms/InstCombine/gep-addrspace.ll
+++ b/test/Transforms/InstCombine/gep-addrspace.ll
@@ -1,5 +1,8 @@
 ; RUN: opt < %s -instcombine -S
 
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-pc-win32"
+
 %myStruct = type { float, [3 x float], [4 x float], i32 }
 
 ; make sure that we are not crashing when creating an illegal type