diff --git a/libcxxabi/src/config.h b/libcxxabi/src/config.h
index f2710c0c63bc..c823552507d0 100644
--- a/libcxxabi/src/config.h
+++ b/libcxxabi/src/config.h
@@ -14,6 +14,4 @@
 #ifndef LIBCXXABI_CONFIG_H
 #define LIBCXXABI_CONFIG_H
 
-#include <unistd.h>
-
 #endif // LIBCXXABI_CONFIG_H