diff --git a/luprex/core/cpp/driver-linux.cpp b/luprex/core/cpp/driver-linux.cpp
index 0e21558c..487321dd 100644
--- a/luprex/core/cpp/driver-linux.cpp
+++ b/luprex/core/cpp/driver-linux.cpp
@@ -108,8 +108,7 @@ public:
         return sock;
 
     error_errno:
-        strerror_r(errno, errbuf, 1024);
-        err = errbuf;
+        err = strerror_r(errno, errbuf, 1024);
     error:
         if (sock != INVALID_SOCKET) close(sock);
         if (addrs != nullptr) freeaddrinfo(addrs);