diff --git a/src/gui/DownloadSelectionGen.java b/src/gui/DownloadSelectionGen.java
index a48b8b1..22950f7 100644
--- a/src/gui/DownloadSelectionGen.java
+++ b/src/gui/DownloadSelectionGen.java
@@ -134,6 +134,8 @@ public class DownloadSelectionGen extends javax.swing.JPanel {
 
 					/** Actions to initiate when button "Back" is initiate */
 					private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
+							smudp.setStop();
+							smtcp.setStop();
 							ArgumentsGen a = new ArgumentsGen();
 							JFrame topFrame = (JFrame) SwingUtilities.getWindowAncestor(this);
 							topFrame.add(a);