diff --git a/lib/Analysis/UninitializedValues.cpp b/lib/Analysis/UninitializedValues.cpp
index 25a5ecb..3edf04d 100644
--- a/lib/Analysis/UninitializedValues.cpp
+++ b/lib/Analysis/UninitializedValues.cpp
@@ -223,7 +223,7 @@
 //===----------------------------------------------------------------------===//      
 
 namespace {
-  typedef ExprDeclBitVector_Types::Union Merge;
+  typedef ExprDeclBitVector_Types::Intersect Merge;
   typedef DataflowSolver<UninitializedValues,TransferFuncs,Merge> Solver;
 }