diff --git a/lib/Analysis/LibCallAliasAnalysis.cpp b/lib/Analysis/LibCallAliasAnalysis.cpp
index 6492ac69b51..2fd17cfacc5 100644
--- a/lib/Analysis/LibCallAliasAnalysis.cpp
+++ b/lib/Analysis/LibCallAliasAnalysis.cpp
@@ -18,7 +18,7 @@
 #include "llvm/Target/TargetData.h"
 using namespace llvm;
 
-namespace llvm {
+namespace {
   /// LibCallAliasAnalysis - Alias analysis driven from LibCallInfo.
   struct LibCallAliasAnalysis : public FunctionPass, AliasAnalysis {
     static char ID; // Class identification