diff --git a/files/ex15.js b/files/ex15.js
index 20ef33c74733129a393f213a443e0369dcf7eeab..6064f764149e37e43995171251c068b2691decad 100644
--- a/files/ex15.js
+++ b/files/ex15.js
@@ -5,14 +5,10 @@ var host = process.argv[2];
 var port = process.argv[3];
 var filename = process.argv[4];
 
-var client = new net.Socket();
-client.connect(port, host, function() {
+var socket = new net.Socket();
+socket.connect(port, host, function() {
   fs.readFile(filename, function (error, data) {
-    if (error) {
-      console.log(error);
-      process.exit(1);
-    }
-    client.write(data);
+    socket.write(data);
     process.exit();
   });
 });
\ No newline at end of file
diff --git a/slides/ex15.md b/slides/ex15.md
index 7d2ec27f1f7d45def46360b7f4c3358619c8ef17..a9ff80f6ace1f2fc6990ee7e70e4266926f13d54 100644
--- a/slides/ex15.md
+++ b/slides/ex15.md
@@ -10,10 +10,10 @@ var host = process.argv[2];
 var port = process.argv[3];
 var filename = process.argv[4];
 
-var client = new net.Socket();
-client.connect(port, host, function() {
+var socket = new net.Socket();
+socket.connect(port, host, function() {
   fs.readFile(filename, function (error, data) {
-    client.write(data);
+    socket.write(data);
     process.exit();
   });
 });