diff --git a/llvm/lib/Object/WindowsResource.cpp b/llvm/lib/Object/WindowsResource.cpp
--- a/llvm/lib/Object/WindowsResource.cpp
+++ b/llvm/lib/Object/WindowsResource.cpp
@@ -722,7 +722,9 @@
 static void coffnamecpy(char (&Dest)[COFF::NameSize], StringRef Src) {
   assert(Src.size() <= COFF::NameSize &&
          "Src is not larger than COFF::NameSize");
-  strncpy(Dest, Src.data(), (size_t)COFF::NameSize);
+  memcpy(Dest, Src.data(), Src.size());
+  if(Src.size() < COFF::NameSize)
+    Dest[Src.size()] = '\0';
 }
 
 void WindowsResourceCOFFWriter::writeCOFFHeader(uint32_t TimeDateStamp) {