1 files changed, 5 insertions, 0 deletions
diff --git a/src/coding.c b/src/coding.c
index d032f8c9483..0ffb37f4bfa 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -5356,10 +5356,15 @@ static Lisp_Object
 code_convert_region_unwind (arg)
      Lisp_Object arg;
 {
+  struct gcpro gcpro1;
+  GCPRO1 (arg);
+
   inhibit_pre_post_conversion = 0;
   Vlast_coding_system_used = XCAR (arg);
   for (arg = XCDR (arg); ! NILP (arg); arg = XCDR (arg))
     Fkill_buffer (XCAR (arg));
+
+  UNGCPRO;
   return Qnil;
 }