diff --git a/hwe/func_converter.php b/hwe/func_converter.php
index 563d0061..e59bed3f 100644
--- a/hwe/func_converter.php
+++ b/hwe/func_converter.php
@@ -463,9 +463,9 @@ function getTechLevel($tech):int{
     );
 }
 
-function TechLimit($startYear, $year, $tech) : bool {
+function TechLimit($startyear, $year, $tech) : bool {
 
-    $relYear = $year - $startYear;
+    $relYear = $year - $startyear;
 
     $relMaxTech = Util::valueFit(
         floor($relYear / 5) + 1,