diff --git a/llvm/tools/llvm-nm/llvm-nm.cpp b/llvm/tools/llvm-nm/llvm-nm.cpp
--- a/llvm/tools/llvm-nm/llvm-nm.cpp
+++ b/llvm/tools/llvm-nm/llvm-nm.cpp
@@ -707,8 +707,8 @@
   return Sym.TypeChar != 'U' && Sym.TypeChar != 'w' && Sym.TypeChar != 'v';
 }
 
-void writeFileName(raw_ostream &S, const std::string &ArchiveName,
-                   const std::string &ArchitectureName) {
+static void writeFileName(raw_ostream &S, const std::string &ArchiveName,
+                          const std::string &ArchitectureName) {
   if (!ArchitectureName.empty())
     S << "(for architecture " << ArchitectureName << "):";
   if (OutputFormat == posix && !ArchiveName.empty())