diff --git a/src/AzureADB2C/Provider.php b/src/AzureADB2C/Provider.php
index 26ec7b630..396661bc6 100644
--- a/src/AzureADB2C/Provider.php
+++ b/src/AzureADB2C/Provider.php
@@ -23,6 +23,8 @@ class Provider extends AbstractProvider
         'openid',
     ];
 
+    protected $scopeSeparator = ' ';
+
     /**
      * Get the policy.
      *