diff --git a/lib/Support/Timer.cpp b/lib/Support/Timer.cpp
index 26f10e77f77..96b63f1e94e 100644
--- a/lib/Support/Timer.cpp
+++ b/lib/Support/Timer.cpp
@@ -8,7 +8,6 @@
 #include "Support/CommandLine.h"
 #include <sys/resource.h>
 #include <sys/time.h>
-#include <sys/unistd.h>
 #include <unistd.h>
 #ifndef __FreeBSD__
 #include <malloc.h>
diff --git a/lib/VMCore/Pass.cpp b/lib/VMCore/Pass.cpp
index ca55b0da0ab..04299e9b36e 100644
--- a/lib/VMCore/Pass.cpp
+++ b/lib/VMCore/Pass.cpp
@@ -14,7 +14,7 @@
 #include <stdio.h>
 #include <sys/resource.h>
 #include <sys/time.h>
-#include <sys/unistd.h>
+#include <unistd.h>
 #include <set>
 
 // IncludeFile - Stub function used to help linking out.
diff --git a/support/lib/Support/Timer.cpp b/support/lib/Support/Timer.cpp
index 26f10e77f77..96b63f1e94e 100644
--- a/support/lib/Support/Timer.cpp
+++ b/support/lib/Support/Timer.cpp
@@ -8,7 +8,6 @@
 #include "Support/CommandLine.h"
 #include <sys/resource.h>
 #include <sys/time.h>
-#include <sys/unistd.h>
 #include <unistd.h>
 #ifndef __FreeBSD__
 #include <malloc.h>