diff --git a/docutranslate/static/index.html b/docutranslate/static/index.html
index a5644c8..87de12d 100644
--- a/docutranslate/static/index.html
+++ b/docutranslate/static/index.html
@@ -1212,7 +1212,7 @@
         {val: "https://api.302.ai/v1", label: "302.AI", provider: ""},
         {val: "https://api.openai.com/v1", label: "OpenAI", provider: "default"},
         {
-            val: "https://generativelanguage.googleapis.com/v1beta/openai",
+            val: "https://generativelanguage.googleapis.com/v1beta/openai/",
             label: "Gemini",
             provider: "google"
         },