diff --git a/libraries/Config.class.php b/libraries/Config.class.php
index 2fd0b28f7c..ed31712f43 100644
--- a/libraries/Config.class.php
+++ b/libraries/Config.class.php
@@ -1550,6 +1550,10 @@ class PMA_Config
                 && strtolower(PMA_getenv('HTTPS')) == 'on'
             ) {
                 $url['scheme'] = 'https';
+            // A10 Networks load balancer:
+            } elseif (PMA_getenv('HTTP_HTTPS_FROM_LB')
+                && strtolower(PMA_getenv('HTTP_HTTPS_FROM_LB')) == 'on') {
+                $url['scheme'] = 'https';
             } elseif (PMA_getenv('HTTP_X_FORWARDED_PROTO')) {
                 $url['scheme'] = strtolower(PMA_getenv('HTTP_X_FORWARDED_PROTO'));
             } elseif (PMA_getenv('HTTP_FRONT_END_HTTPS')