diff --git a/src/Migration/ThemeMigration.php b/src/Migration/ThemeMigration.php
index 2813c9c..b5f9592 100644
--- a/src/Migration/ThemeMigration.php
+++ b/src/Migration/ThemeMigration.php
@@ -117,7 +117,7 @@ private function persistTheme(string $themeName, array $config, string $manifest
         // Prevent array-access error when theme not found
         $row = false === $row ? [] : $row;
 
-        if ($manifestHash === $row['manifestHash'] ?? '') {
+        if ($manifestHash === ($row['manifestHash'] ?? '')) {
             return false;
         }