diff --git a/src/libCom/osi/os/Darwin/osdSock.h b/src/libCom/osi/os/Darwin/osdSock.h
index f50f73030..0c9ef55a1 100644
--- a/src/libCom/osi/os/Darwin/osdSock.h
+++ b/src/libCom/osi/os/Darwin/osdSock.h
@@ -43,7 +43,7 @@ typedef int                     SOCKET;
 #define SOCKERRNO               errno
 #define socket_ioctl(A,B,C)     ioctl(A,B,C)
 typedef int osiSockIoctl_t;
-typedef int osiSocklen_t;
+typedef socklen_t osiSocklen_t;
 
 #define FD_IN_FDSET(FD) ((FD)<FD_SETSIZE)