diff --git a/application/controllers/Lotw.php b/application/controllers/Lotw.php
index c6c82c1d1..eb2eba33f 100644
--- a/application/controllers/Lotw.php
+++ b/application/controllers/Lotw.php
@@ -524,15 +524,11 @@ class Lotw extends CI_Controller {
 						$state = "";
 					}
 					// Present only if the QSLing station specified a single valid grid square value in its station location uploaded to LoTW.
+					$qsl_gridsquare = "";
 					if (isset($record['gridsquare'])) {
-						// Only overwrite if incoming grid is at least of the same length/precision than existing in the QSO record
-						if (strlen($record['gridsquare']) >= strlen($status[2])) {
+						if (strlen($record['gridsquare']) > strlen($status[2]) || substr(strtoupper($status[2]), 0, 4) != substr(strtoupper($record['gridsquare']), 0, 4)) {
 							$qsl_gridsquare = $record['gridsquare'];
-						} else {
-							$qsl_gridsquare = "";
 						}
-					} else {
-						$qsl_gridsquare = "";
 					}
 
 					if (isset($record['vucc_grids'])) {