1 files changed, 2 insertions, 1 deletions

diff --git a/src/eval.c b/src/eval.c
index a9bad2491fa..caeb791c19b 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -1988,7 +1988,8 @@ it defines a macro.  */)
       Lisp_Object fun = Findirect_function (funname, Qnil);
 
       if (!NILP (Fequal (fun, fundef)))
-        error ("Autoloading failed to define function %s",
+        error ("Autoloading file %s failed to define function %s",
+               SDATA (Fcar (Fcar (Vload_history))),
                SDATA (SYMBOL_NAME (funname)));
       else
         return fun;