diff --git a/src/server.c b/src/server.c
index acde16b..3fbd284 100644
--- a/src/server.c
+++ b/src/server.c
@@ -225,7 +225,7 @@ static inline int client_by_sock(patty_ax25_server *server,
         goto error_dict_get;
     }
 
-    return (int)((int64_t)value);
+    return (int)((intptr_t)value);
 
 error_dict_get:
     return -1;