diff --git a/src/EasyBreadcrumbBuilder.php b/src/EasyBreadcrumbBuilder.php
index 9da15bd..82f6b8f 100644
--- a/src/EasyBreadcrumbBuilder.php
+++ b/src/EasyBreadcrumbBuilder.php
@@ -204,7 +204,7 @@ class EasyBreadcrumbBuilder implements BreadcrumbBuilderInterface {
         if ($access->isAllowed()) {
           if ($this->config->get(EasyBreadcrumbConstants::TITLE_FROM_PAGE_WHEN_AVAILABLE)) {
             $title = $this->titleResolver->getTitle($route_request, $route_match->getRouteObject());
-            if (array_key_exists($title, $replacedTitles)) {
+            if (array_key_exists((string) $title, $replacedTitles)) {
               $title = $replacedTitles[$title];
             }
           }