diff --git a/lib/DebugInfo/GSYM/GsymReader.cpp b/lib/DebugInfo/GSYM/GsymReader.cpp
index f7bbd700713..dc95fe2f497 100644
--- a/lib/DebugInfo/GSYM/GsymReader.cpp
+++ b/lib/DebugInfo/GSYM/GsymReader.cpp
@@ -16,7 +16,6 @@
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <unistd.h>
 
 #include <fstream>
 #include <functional>