diff --git a/clang/lib/Frontend/ASTUnit.cpp b/clang/lib/Frontend/ASTUnit.cpp
index b1e7db1f6b39e..14971da4da0bf 100644
--- a/clang/lib/Frontend/ASTUnit.cpp
+++ b/clang/lib/Frontend/ASTUnit.cpp
@@ -822,7 +822,6 @@ std::unique_ptr<ASTUnit> ASTUnit::LoadFromASTFile(
   // Gather Info for preprocessor construction later on.
 
   HeaderSearch &HeaderInfo = *AST->HeaderInfo;
-  unsigned Counter;
 
   AST->PP = std::make_shared<Preprocessor>(
       AST->PPOpts, AST->getDiagnostics(), *AST->LangOpts,
@@ -846,6 +845,7 @@ std::unique_ptr<ASTUnit> ASTUnit::LoadFromASTFile(
       /*isysroot=*/"",
       /*DisableValidationKind=*/disableValid, AllowASTWithCompilerErrors);
 
+  unsigned Counter = 0;
   AST->Reader->setListener(std::make_unique<ASTInfoCollector>(
       *AST->PP, AST->Ctx.get(), *AST->HSOpts, *AST->PPOpts, *AST->LangOpts,
       AST->TargetOpts, AST->Target, Counter));