diff --git a/src/Options/Options.tsx b/src/Options/Options.tsx
index c521908..fd287a9 100644
--- a/src/Options/Options.tsx
+++ b/src/Options/Options.tsx
@@ -45,7 +45,7 @@ const Options: React.FC = () => {
                     advancedSettings === true
                         ? customHost.endsWith('/')
                             ? customHost.slice(0, -1)
-                            : customHost
+                            : customHost.toLowerCase()
                         : extensionConfig.customhost, // drop customhost value if `advanced` is false
             };