diff --git a/application/views/interface_assets/footer.php b/application/views/interface_assets/footer.php
index eb98ac86f..43f846c88 100644
--- a/application/views/interface_assets/footer.php
+++ b/application/views/interface_assets/footer.php
@@ -1157,11 +1157,11 @@ $($('#callsign')).on('keypress',function(e) {
 
 <?php if ($this->uri->segment(1) == "qso") { ?>
 
-<script src="<?php echo base_url() ;?>assets/js/sections/qso.js"></script>
-<script src="<?php echo base_url() ;?>assets/js/sections/satellite_functions.js"></script>
-<script src="<?php echo base_url() ;?>assets/js/bootstrap-multiselect.js"></script>
+<script src="<?php echo base_url() ;?>assets/js/sections/qso.js?<?php echo filemtime(realpath(__DIR__ . "/../../../assets/js/sections/qso.js"));?>"></script>
+<script src="<?php echo base_url() ;?>assets/js/sections/satellite_functions.js?<?php echo filemtime(realpath(__DIR__ . "/../../../assets/js/sections/satellite_functions.js"));?>"></script>
+<script src="<?php echo base_url() ;?>assets/js/bootstrap-multiselect.js?<?php echo filemtime(realpath(__DIR__ . "/../../../assets/js/bootstrap-multiselect.js"));?>"></script>
 <?php if ($this->session->userdata('isWinkeyEnabled')) { ?>
-	<script src="<?php echo base_url() ;?>assets/js/winkey.js"></script>
+	<script src="<?php echo base_url() ;?>assets/js/winkey.js?<?php echo filemtime(realpath(__DIR__ . "/../../../assets/js/winkey.js"));?>"></script>
 <?php }	?>
 	<script type="text/javascript">
 		var dxcluster_provider = '<?php echo base_url(); ?>index.php/dxcluster';