diff --git a/src/Passwordless.AspNetCore/IdentityBuilderExtensions.cs b/src/Passwordless.AspNetCore/IdentityBuilderExtensions.cs
index 2edec44..ef6d6b4 100644
--- a/src/Passwordless.AspNetCore/IdentityBuilderExtensions.cs
+++ b/src/Passwordless.AspNetCore/IdentityBuilderExtensions.cs
@@ -97,6 +97,7 @@ private static IServiceCollection AddPasswordlessCore(this IServiceCollection se
                 var aspNetCoreOptions = aspNetCoreOptionsAccessor.Value;
                 options.ApiSecret = aspNetCoreOptions.ApiSecret;
                 options.ApiUrl = aspNetCoreOptions.ApiUrl;
+                options.ApiKey = aspNetCoreOptions.ApiKey;
             });
 
         return services;