diff --git a/lisp/llvm-lib/llvm-act-on-file/act-on-test-file.el b/lisp/llvm-lib/llvm-act-on-file/act-on-test-file.el
index 7504ece..af9c004 100644
--- a/lisp/llvm-lib/llvm-act-on-file/act-on-test-file.el
+++ b/lisp/llvm-lib/llvm-act-on-file/act-on-test-file.el
@@ -76,7 +76,7 @@
 
 (defun ll/build-lit-command (file action)
   (format "%s %s %s"
-          (car (lls/get-tool "llvm-lit"))
+          (lls/prompt-tool "llvm-lit")
           (pcase action
             ('verbose "-v")
             ('all "-a")