diff --git a/ReactCommon/cxxreact/JSBigString.h b/ReactCommon/cxxreact/JSBigString.h
index 97a350d3a..497b9f7b5 100644
--- a/ReactCommon/cxxreact/JSBigString.h
+++ b/ReactCommon/cxxreact/JSBigString.h
@@ -8,7 +8,6 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/mman.h>
-#include <unistd.h>
 
 #include <folly/Exception.h>