diff --git a/llvm/lib/Target/MSIL/MSILWriter.h b/llvm/lib/Target/MSIL/MSILWriter.h
index 6c52a17be081..09cfb219bfef 100644
--- a/llvm/lib/Target/MSIL/MSILWriter.h
+++ b/llvm/lib/Target/MSIL/MSILWriter.h
@@ -35,7 +35,7 @@ namespace llvm {
   extern Target TheMSILTarget;
 }
 
-namespace {
+namespace MSIL {
 
   class MSILModule : public ModulePass {
     Module *ModulePtr;