diff --git a/lib/sockunion.c b/lib/sockunion.c
index eff38798cc..36ae21fdd1 100644
--- a/lib/sockunion.c
+++ b/lib/sockunion.c
@@ -290,8 +290,10 @@ int sockopt_reuseaddr(int sock)
 	ret = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)&on,
 			 sizeof(on));
 	if (ret < 0) {
-		flog_err(EC_LIB_SOCKET,
-			 "can't set sockopt SO_REUSEADDR to socket %d", sock);
+		flog_err(
+			EC_LIB_SOCKET,
+			"can't set sockopt SO_REUSEADDR to socket %d errno=%d: %s",
+			sock, errno, safe_strerror(errno));
 		return -1;
 	}
 	return 0;