diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index 42bc14b3996f..70a4c333f34a 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -8982,10 +8982,9 @@ enum OverloadCandidateKind {
   oc_inherited_constructor_template
 };
 
-OverloadCandidateKind ClassifyOverloadCandidate(Sema &S,
-                                                NamedDecl *Found,
-                                                FunctionDecl *Fn,
-                                                std::string &Description) {
+static OverloadCandidateKind
+ClassifyOverloadCandidate(Sema &S, NamedDecl *Found, FunctionDecl *Fn,
+                          std::string &Description) {
   bool isTemplate = false;
 
   if (FunctionTemplateDecl *FunTmpl = Fn->getPrimaryTemplate()) {