diff --git a/src/TenantManager.php b/src/TenantManager.php
index 4bb297f8..80c552e2 100644
--- a/src/TenantManager.php
+++ b/src/TenantManager.php
@@ -385,7 +385,9 @@ final class TenantManager
     protected function jsonDecodeArrayValues(array $array)
     {
         \array_walk($array, function (&$value, $key) {
-            $value = \json_decode($value, true);
+            if ($value) {
+                $value = \json_decode($value, true);
+            }
         });
 
         return $array;