diff --git a/system/View/Cells/Cell.php b/system/View/Cells/Cell.php
index ffe652baa3da..581499028e4b 100644
--- a/system/View/Cells/Cell.php
+++ b/system/View/Cells/Cell.php
@@ -85,7 +85,7 @@ final protected function view(?string $view, array $data = []): string
             $viewName  = decamelize(class_basename(static::class));
             $directory = dirname((new ReflectionClass($this))->getFileName()) . DIRECTORY_SEPARATOR;
 
-            $possibleView1 = $directory . substr($viewName, 0, strrpos($viewName, '_cell')) . '.php';
+            $possibleView1 = $directory . substr($viewName, 0, (int) strrpos($viewName, '_cell')) . '.php';
             $possibleView2 = $directory . $viewName . '.php';
         }