1 files changed, 1 insertions, 1 deletions

diff --git a/src/coding.c b/src/coding.c
index b6299097d55..b0721cc22be 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -5371,7 +5371,7 @@ code_convert_region_unwind (arg)
 
   inhibit_pre_post_conversion = 0;
   Vlast_coding_system_used = XCAR (arg);
-  for (arg = XCDR (arg); ! NILP (arg); arg = XCDR (arg))
+  for (arg = XCDR (arg); CONSP (arg); arg = XCDR (arg))
     Fkill_buffer (XCAR (arg));
 
   UNGCPRO;