diff --git a/cmd/auth.go b/cmd/auth.go
index 10deab88..cbd563de 100644
--- a/cmd/auth.go
+++ b/cmd/auth.go
@@ -564,13 +564,13 @@ func startOpenAICallbackServer(expectedState string) (*callbackServer, error) {
}
// Return success page
- w.Header().Set("Content-Type", "text/html")
+ w.Header().Set("Content-Type", "text/html; charset=utf-8")
w.WriteHeader(http.StatusOK)
_, _ = fmt.Fprintf(w, `
Authentication Successful
-✓ Authentication Successful
+✓ Authentication Successful
You can close this window and return to the terminal.
`)