diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 49ce0b7..f362226 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -32,7 +32,6 @@
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Support/Path.h"
-#include "llvm/Support/PathV1.h"
 #include "llvm/Support/system_error.h"
 #include <sys/stat.h>
 using namespace clang;
@@ -846,16 +845,16 @@
 
 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
                                                  void *MainAddr) {
-  llvm::sys::Path P(llvm::sys::fs::getMainExecutable(Argv0, MainAddr));
+  SmallString<128> P(llvm::sys::fs::getMainExecutable(Argv0, MainAddr));
 
-  if (!P.isEmpty()) {
-    P.eraseComponent();  // Remove /clang from foo/bin/clang
-    P.eraseComponent();  // Remove /bin   from foo/bin
+  if (!P.empty()) {
+    llvm::sys::path::remove_filename(P); // Remove /clang from foo/bin/clang
+    llvm::sys::path::remove_filename(P); // Remove /bin   from foo/bin
 
     // Get foo/lib/clang/<version>/include
-    P.appendComponent("lib");
-    P.appendComponent("clang");
-    P.appendComponent(CLANG_VERSION_STRING);
+    llvm::sys::path::append(P, "lib");
+    llvm::sys::path::append(P, "clang");
+    llvm::sys::path::append(P, CLANG_VERSION_STRING);
   }
 
   return P.str();