diff --git a/lisp/progmodes/eglot.el b/lisp/progmodes/eglot.el
index 4752b0100d9..d72f5387bb4 100644
--- a/lisp/progmodes/eglot.el
+++ b/lisp/progmodes/eglot.el
@@ -244,7 +244,7 @@ automatically)."
   ;; `eglot.el' is installed via GNU ELPA in an older Emacs.
   `(((rust-ts-mode rust-mode) . ("rust-analyzer"))
     ((cmake-mode cmake-ts-mode)
-     . ,(eglot-alternatives '(("neocmakelsp" "--stdio") "cmake-language-server")))
+     . ,(eglot-alternatives '(("neocmakelsp" "stdio") "cmake-language-server")))
     (vimrc-mode . ("vim-language-server" "--stdio"))
     ((python-mode python-ts-mode)
      . ,(eglot-alternatives