diff --git a/src/msg/msg_types.h b/src/msg/msg_types.h
index 5d86b3a229e..d259e528947 100644
--- a/src/msg/msg_types.h
+++ b/src/msg/msg_types.h
@@ -27,10 +27,10 @@ namespace ceph {
 }
 
 inline bool operator==(const sockaddr_in& a, const sockaddr_in& b) {
-  return strncmp((const char*)&a, (const char*)&b, sizeof(a)) == 0;
+  return memcmp((const char*)&a, (const char*)&b, sizeof(a)) == 0;
 }
 inline bool operator!=(const sockaddr_in& a, const sockaddr_in& b) {
-  return strncmp((const char*)&a, (const char*)&b, sizeof(a)) != 0;
+  return memcmp((const char*)&a, (const char*)&b, sizeof(a)) != 0;
 }
 
 extern ostream& operator<<(ostream& out, const sockaddr_storage &ss);