diff --git a/install-mailcow-debian.sh b/install-mailcow-debian.sh
index 4c0b148..d1db250 100644
--- a/install-mailcow-debian.sh
+++ b/install-mailcow-debian.sh
@@ -166,7 +166,18 @@ if ! is_step_completed "mailcow_installed"; then
     # Generate config if not already generated
     if [ ! -f "$MAILCOW_DIR/mailcow.conf" ]; then
         cd "$MAILCOW_DIR"
-        echo "$MAILCOW_HOSTNAME" | ./generate_config.sh
+        
+        # Make sure generate_config.sh is executable
+        chmod +x generate_config.sh
+        
+        # Create configuration file with proper permissions
+        su - dockeruser -c "cd $MAILCOW_DIR && echo \"$MAILCOW_HOSTNAME\" | ./generate_config.sh"
+        
+        # Verify the configuration file was created
+        if [ ! -f "$MAILCOW_DIR/mailcow.conf" ]; then
+            log_message "Error: Failed to generate mailcow.conf"
+            exit 1
+        fi
         
         echo "Would you like to edit the mailcow configuration? (y/N)"
         read -n1 -r