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 30e5a767aa..1965d6e64d 100644
--- a/en_US.ISO8859-1/books/developers-handbook/sockets/chapter.sgml
+++ b/en_US.ISO8859-1/books/developers-handbook/sockets/chapter.sgml
@@ -1210,7 +1210,7 @@ int main() {
             return 3;
             break;
         default:
-            close s;
+            close(s);
             return 0;
             break;
         case 0: