diff --git a/en_US.ISO8859-1/books/developers-handbook/sockets/chapter.sgml b/en_US.ISO8859-1/books/developers-handbook/sockets/chapter.sgml
index e7fff1b100..31695040f1 100644
--- a/en_US.ISO8859-1/books/developers-handbook/sockets/chapter.sgml
+++ b/en_US.ISO8859-1/books/developers-handbook/sockets/chapter.sgml
@@ -1578,7 +1578,7 @@ int main(int argc, char *argv[]) {
   host = (argc > 1) ? (char *)argv[1] : "time.nist.gov";
 
   if ((he = gethostbyname(host)) == NULL) {
-    herror(host);
+    perror(host);
     return 2;
   }