diff --git a/sock_channel.hpp b/sock_channel.hpp
index 1bd047e..0ba0df1 100644
--- a/sock_channel.hpp
+++ b/sock_channel.hpp
@@ -26,7 +26,7 @@
                 sockaddr sockAddr;
                 sockaddr_in6 inAddr;
             };
-            size_t addrSize;
+            socklen_t addrSize;
         };
 
         /**