diff --git a/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp b/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
index fcf2109..d12eff7 100644
--- a/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
+++ b/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
@@ -390,7 +390,7 @@
 
     const auto I = Config.SymbolsToRename.find(Sym.Name);
     if (I != Config.SymbolsToRename.end())
-      Sym.Name = I->getValue();
+      Sym.Name = std::string(I->getValue());
 
     if (!Config.SymbolsPrefix.empty() && Sym.Type != STT_SECTION)
       Sym.Name = (Config.SymbolsPrefix + Sym.Name).str();
@@ -627,7 +627,7 @@
       const auto Iter = Config.SectionsToRename.find(Sec.Name);
       if (Iter != Config.SectionsToRename.end()) {
         const SectionRename &SR = Iter->second;
-        Sec.Name = SR.NewName;
+        Sec.Name = std::string(SR.NewName);
         if (SR.NewFlags.hasValue())
           setSectionFlagsAndType(Sec, SR.NewFlags.getValue());
       }
diff --git a/llvm/tools/llvm-objcopy/ELF/Object.cpp b/llvm/tools/llvm-objcopy/ELF/Object.cpp
index ad53c75..14ac7bb 100644
--- a/llvm/tools/llvm-objcopy/ELF/Object.cpp
+++ b/llvm/tools/llvm-objcopy/ELF/Object.cpp
@@ -1520,7 +1520,7 @@
       continue;
     }
     auto &Sec = makeSection(Shdr);
-    Sec.Name = unwrapOrError(ElfFile.getSectionName(&Shdr));
+    Sec.Name = std::string(unwrapOrError(ElfFile.getSectionName(&Shdr)));
     Sec.Type = Sec.OriginalType = Shdr.sh_type;
     Sec.Flags = Sec.OriginalFlags = Shdr.sh_flags;
     Sec.Addr = Shdr.sh_addr;
diff --git a/llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp b/llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp
index 4578d0b..a4b771e 100644
--- a/llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp
+++ b/llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp
@@ -60,7 +60,7 @@
   for (SymbolEntry &Sym : Obj.SymTable) {
     auto I = Config.SymbolsToRename.find(Sym.Name);
     if (I != Config.SymbolsToRename.end())
-      Sym.Name = I->getValue();
+      Sym.Name = std::string(I->getValue());
   }
 
   auto RemovePred = [Config](const std::unique_ptr<SymbolEntry> &N) {
diff --git a/llvm/tools/llvm-objcopy/MachO/Object.h b/llvm/tools/llvm-objcopy/MachO/Object.h
index dc2606e..eb8db57 100644
--- a/llvm/tools/llvm-objcopy/MachO/Object.h
+++ b/llvm/tools/llvm-objcopy/MachO/Object.h
@@ -55,11 +55,11 @@
   std::vector<RelocationInfo> Relocations;
 
   Section(StringRef SegName, StringRef SectName)
-      : Segname(SegName), Sectname(SectName),
+      : Segname(std::string(SegName)), Sectname(std::string(SectName)),
         CanonicalName((Twine(SegName) + Twine(',') + SectName).str()) {}
 
   Section(StringRef SegName, StringRef SectName, StringRef Content)
-      : Segname(SegName), Sectname(SectName),
+      : Segname(std::string(SegName)), Sectname(std::string(SectName)),
         CanonicalName((Twine(SegName) + Twine(',') + SectName).str()),
         Content(Content) {}