diff --git a/HttpsTest.java b/HttpsTest.java
index 6d66fdc0307432a59e2c67ad5aa0350d54529e61..14b7b3f75ba40e94d9d49c24d00577f7e564244e 100644
--- a/HttpsTest.java
+++ b/HttpsTest.java
@@ -10,6 +10,10 @@ public class HttpsTest{
 	public static void main(String [] args){
 
 		//System.out.println(args[0]);
+		if(args.length < 1){
+			System.out.println("Usage: [https_test] <URL>");
+			System.exit(1);
+		}
 
 		try{