diff --git a/web/typo3conf/ext/ep_products/Classes/Service/FilterSettingsEncoder.php b/web/typo3conf/ext/ep_products/Classes/Service/FilterSettingsEncoder.php
index aa98ae12..2c429bf2 100644
--- a/web/typo3conf/ext/ep_products/Classes/Service/FilterSettingsEncoder.php
+++ b/web/typo3conf/ext/ep_products/Classes/Service/FilterSettingsEncoder.php
@@ -72,7 +72,7 @@ class FilterSettingsEncoder
             $method = 'get' . ucfirst($name);
             $value = $filterSettings->{$method}();
             if ($type === 'array') {
-                $encoded[] = implode(',', $value);
+                $encoded[] = implode(';', $value);
             } elseif ($type === 'date') {
                 $encoded[] = ($value !== null) ? $value->format('Y-m-d') : '';
             } else {
@@ -97,7 +97,7 @@ class FilterSettingsEncoder
             list($name, $type) = $property;
             $value = $values[$index];
             if ($type === 'array') {
-                $value = GeneralUtility::trimExplode(',', $value, true);
+                $value = GeneralUtility::trimExplode(';', $value, true);
             }
             $decoded[$name] = $value;
         }