diff --git a/llvm/lib/Object/Archive.cpp b/llvm/lib/Object/Archive.cpp
index ad1cde0d258b..b67377c63416 100644
--- a/llvm/lib/Object/Archive.cpp
+++ b/llvm/lib/Object/Archive.cpp
@@ -19,7 +19,7 @@
 using namespace llvm;
 using namespace object;
 
-static const StringRef Magic = "!<arch>\n";
+static const char *Magic = "!<arch>\n";
 
 namespace {
 struct ArchiveMemberHeader {
@@ -200,7 +200,7 @@ Archive::Archive(MemoryBuffer *source, error_code &ec)
 }
 
 Archive::child_iterator Archive::begin_children(bool skip_internal) const {
-  const char *Loc = Data->getBufferStart() + Magic.size();
+  const char *Loc = Data->getBufferStart() + strlen(Magic);
   size_t Size = sizeof(ArchiveMemberHeader) +
     ToHeader(Loc)->getSize();
   Child c(this, StringRef(Loc, Size));