diff --git a/aws/src/main/java/com/baeldung/ec2/EC2Application.java b/aws/src/main/java/com/baeldung/ec2/EC2Application.java
index 4d22c91924..62179145f9 100644
--- a/aws/src/main/java/com/baeldung/ec2/EC2Application.java
+++ b/aws/src/main/java/com/baeldung/ec2/EC2Application.java
@@ -123,7 +123,7 @@ public class EC2Application {
 
         // 9) - Start an Instance
         StartInstancesRequest startInstancesRequest = new StartInstancesRequest()
-            .withInstanceIds("yourInstanceId");
+            .withInstanceIds(yourInstanceId);
 
         ec2Client.startInstances(startInstancesRequest);