diff --git a/src/Azure/AzureAD/Authentication.AzureAD.UI/src/AzureADCookieOptionsConfiguration.cs b/src/Azure/AzureAD/Authentication.AzureAD.UI/src/AzureADCookieOptionsConfiguration.cs
index 7f4f87c8bd1b..6d0116921e9e 100644
--- a/src/Azure/AzureAD/Authentication.AzureAD.UI/src/AzureADCookieOptionsConfiguration.cs
+++ b/src/Azure/AzureAD/Authentication.AzureAD.UI/src/AzureADCookieOptionsConfiguration.cs
@@ -21,6 +21,11 @@ public AzureADCookieOptionsConfiguration(IOptions<AzureADSchemeOptions> schemeOp
         public void Configure(string name, CookieAuthenticationOptions options)
         {
             var AzureADScheme = GetAzureADScheme(name);
+            if (AzureADScheme is null)
+            {
+                return;
+            }
+            
             var AzureADOptions = _AzureADOptions.Get(AzureADScheme);
             if (name != AzureADOptions.CookieSchemeName)
             {