diff --git a/lib/System/Unix/Path.cpp b/lib/System/Unix/Path.cpp
index 9a860a0..49b2bf4 100644
--- a/lib/System/Unix/Path.cpp
+++ b/lib/System/Unix/Path.cpp
@@ -16,10 +16,10 @@
 //===          is guaranteed to work on *all* UNIX variants.
 //===----------------------------------------------------------------------===//
 
+#include <llvm/Config/config.h>
 #include "Unix.h"
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <Config/config.h>
 
 namespace llvm {
 using namespace sys;
diff --git a/lib/System/Unix/Path.inc b/lib/System/Unix/Path.inc
index 9a860a0..49b2bf4 100644
--- a/lib/System/Unix/Path.inc
+++ b/lib/System/Unix/Path.inc
@@ -16,10 +16,10 @@
 //===          is guaranteed to work on *all* UNIX variants.
 //===----------------------------------------------------------------------===//
 
+#include <llvm/Config/config.h>
 #include "Unix.h"
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <Config/config.h>
 
 namespace llvm {
 using namespace sys;
diff --git a/lib/System/Unix/Program.cpp b/lib/System/Unix/Program.cpp
index ca8514d..b8ef559 100644
--- a/lib/System/Unix/Program.cpp
+++ b/lib/System/Unix/Program.cpp
@@ -16,10 +16,10 @@
 //===          is guaranteed to work on *all* UNIX variants.
 //===----------------------------------------------------------------------===//
 
+#include <llvm/Config/config.h>
 #include "Unix.h"
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <Config/config.h>
 #ifdef HAVE_SYS_WAIT_H
 #include <sys/wait.h>
 #endif
diff --git a/lib/System/Unix/Program.inc b/lib/System/Unix/Program.inc
index ca8514d..b8ef559 100644
--- a/lib/System/Unix/Program.inc
+++ b/lib/System/Unix/Program.inc
@@ -16,10 +16,10 @@
 //===          is guaranteed to work on *all* UNIX variants.
 //===----------------------------------------------------------------------===//
 
+#include <llvm/Config/config.h>
 #include "Unix.h"
 #include <sys/stat.h>
 #include <fcntl.h>
-#include <Config/config.h>
 #ifdef HAVE_SYS_WAIT_H
 #include <sys/wait.h>
 #endif
diff --git a/lib/System/Unix/Unix.h b/lib/System/Unix/Unix.h
index aa6bfb1..b9eff46 100644
--- a/lib/System/Unix/Unix.h
+++ b/lib/System/Unix/Unix.h
@@ -16,7 +16,7 @@
 //===          is guaranteed to work on all UNIX variants.
 //===----------------------------------------------------------------------===//
 
-#include "Config/config.h"     // Get autoconf configuration settings
+#include "llvm/Config/config.h"     // Get autoconf configuration settings
 #include <unistd.h>
 #include <cstdlib>
 #include <cstdio>