diff --git a/src/main/java/data/Duke.java b/src/main/java/data/Duke.java
index 495c4961be..409a17d57e 100644
--- a/src/main/java/data/Duke.java
+++ b/src/main/java/data/Duke.java
@@ -106,6 +106,7 @@ public void runExit() {
             ui.displayMessage(SAVE_TASKLIST_TO_FILE_FAILURE_MESSAGE);
         }
 
+        ui.closeScanner();
         ui.sayGoodbye();
         System.exit(0);
     }
diff --git a/src/main/java/ui/Ui.java b/src/main/java/ui/Ui.java
index 048d078353..b4146a0919 100644
--- a/src/main/java/ui/Ui.java
+++ b/src/main/java/ui/Ui.java
@@ -4,6 +4,7 @@
 import java.io.PrintStream;
 import java.util.Scanner;
 import common.Messages;
+import data.Duke;
 
 import static common.Messages.START_MESSAGE;
 import static common.Messages.FIRST_EXIT_MESSAGE;
@@ -67,6 +68,14 @@ public String getUserCommand() {
         return userInput;
     }
 
+    /**
+     * This method closes the Scanner object.
+     * Is used only when Duke executes {@link Duke#runExit()}
+     */
+    public void closeScanner() {
+        this.in.close();
+    }
+
     /**
      * This methods prints out the message input, enclosed within underscored borders, for user to view.
      * @param message the message to be printed