diff --git a/include/sys/types.h b/include/sys/types.h
index f1f655de7e..4ae38c5c26 100644
--- a/include/sys/types.h
+++ b/include/sys/types.h
@@ -219,6 +219,7 @@ typedef int16_t      blksize_t;
 /* Network related */
 
 typedef unsigned int socklen_t;
+#define __socklen_t_defined
 typedef uint16_t     sa_family_t;
 
 /* Used for system times in clock ticks. This type is the natural width of