diff --git a/lib/CodeGen/MachineFunctionAnalysis.cpp b/lib/CodeGen/MachineFunctionAnalysis.cpp
index f5febc5..8d87e3e 100644
--- a/lib/CodeGen/MachineFunctionAnalysis.cpp
+++ b/lib/CodeGen/MachineFunctionAnalysis.cpp
@@ -36,7 +36,7 @@
 
 bool MachineFunctionAnalysis::runOnFunction(Function &F) {
   assert(!MF && "MachineFunctionAnalysis already initialized!");
-  MF = new MachineFunction(&F, TM);
+  MF = new MachineFunction(&F, TM, NextFnNum++);
   return false;
 }