diff --git a/llvm/include/llvm/IR/DebugInfo.h b/llvm/include/llvm/IR/DebugInfo.h
index eba422a9fde6c..730c69d0c622e 100644
--- a/llvm/include/llvm/IR/DebugInfo.h
+++ b/llvm/include/llvm/IR/DebugInfo.h
@@ -106,8 +106,6 @@ class DebugInfoFinder {
   void reset();
 
 private:
-  void InitializeTypeMap(const Module &M);
-
   void processCompileUnit(DICompileUnit *CU);
   void processScope(DIScope *Scope);
   void processType(DIType *DT);