diff --git a/vatchecker.php b/vatchecker.php
index e30f70d..5b1f57c 100644
--- a/vatchecker.php
+++ b/vatchecker.php
@@ -28,6 +28,8 @@
 	exit;
 }
 
+const ERROR_SEVERITY = 3;
+
 class Vatchecker extends Module
 {
 	/**
@@ -836,7 +838,7 @@ protected function checkVies( $countryCode, $vatNumber )
 				$return['valid'] = null;
 			}
 
-			PrestaShopLogger::addLog( 'Vatchecker: ' . implode( ', ', $params ) . ' > ' . $e->getMessage() );
+			PrestaShopLogger::addLog( 'VAT check failed! (params: ' . implode( ', ', $params ) . ' , error: ' . $e->getMessage() . ')', ERROR_SEVERITY );
 		}
 
 		$cache[ $cache_key ] = $return;