diff --git a/lib/libedit/src/sys.h b/lib/libedit/src/sys.h
index 1321c20969..40057814ae 100644
--- a/lib/libedit/src/sys.h
+++ b/lib/libedit/src/sys.h
@@ -48,6 +48,10 @@
 #include <stdint.h>
 #endif
 
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
 #if !defined(__attribute__) && (defined(__cplusplus) || !defined(__GNUC__)  || __GNUC__ == 2 && __GNUC_MINOR__ < 8)
 # define __attribute__(A)
 #endif