diff --git a/OpenAI-DotNet/Authentication/OpenAIClientSettings.cs b/OpenAI-DotNet/Authentication/OpenAIClientSettings.cs
index b242e3f9..81d5f408 100644
--- a/OpenAI-DotNet/Authentication/OpenAIClientSettings.cs
+++ b/OpenAI-DotNet/Authentication/OpenAIClientSettings.cs
@@ -56,16 +56,20 @@ public OpenAIClientSettings(string domain, string apiVersion = DefaultOpenAIApiV
                 apiVersion = DefaultOpenAIApiVersion;
             }
 
-            ResourceName = domain.Contains(Http)
-                ? domain
-                : $"{Https}{domain}";
-
-            if (domain.Contains(Http))
+            var httpSchema = Https;
+            if (domain.StartsWith(Http))
             {
+                httpSchema = Http;
                 domain = domain.Replace(Http, string.Empty);
+            }
+            else if (domain.StartsWith(Https))
+            {
+                httpSchema = Https;
                 domain = domain.Replace(Https, string.Empty);
             }
 
+            ResourceName = $"{httpSchema}{domain}";
+
             ApiVersion = apiVersion;
             DeploymentId = string.Empty;
             BaseRequest = $"/{ApiVersion}/";