diff --git a/libgm2/libm2pim/sckt.cc b/libgm2/libm2pim/sckt.cc
index ee579c2cc69..cd9d9c558b2 100644
--- a/libgm2/libm2pim/sckt.cc
+++ b/libgm2/libm2pim/sckt.cc
@@ -251,7 +251,7 @@ EXPORT(getLocalIP) (tcpServerState *s)
       return 0;
     }
 
-  memset (&sa, sizeof (struct sockaddr_in), 0);
+  memset (&sa, 0, sizeof (struct sockaddr_in));
   sa.sin_family = AF_INET;
   sa.sin_port = htons (80);
   if (hp->h_length == sizeof (unsigned int))