1 files changed, 1 insertions, 1 deletions

diff --git a/src/eval.c b/src/eval.c
index 030bf14bcea..5db6f9d0bf3 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -1898,7 +1898,7 @@ If LEXICAL is t, evaluate using lexical scoping.  */)
 {
   ptrdiff_t count = SPECPDL_INDEX ();
   specbind (Qinternal_interpreter_environment,
-            NILP (lexical) ? Qnil : Fcons (Qt, Qnil));
+            CONSP (lexical) || NILP (lexical) ? lexical : Fcons (Qt, Qnil));
   return unbind_to (count, eval_sub (form));
 }