1 files changed, 7 insertions, 2 deletions

diff --git a/src/coding.c b/src/coding.c
index 24c6ef0b6b1..53661fc33cc 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -5577,6 +5577,8 @@ code_convert_region (from, from_byte, to, to_byte, coding, encodep, replace)
       inhibit_modification_hooks = saved_inhibit_modification_hooks;
     }
 
+  coding->heading_ascii = 0;
+
   if (! encodep && CODING_REQUIRE_DETECTION (coding))
     {
       /* We must detect encoding of text and eol format.  */
@@ -6221,6 +6223,8 @@ decode_coding_string (str, coding, nocopy)
   saved_coding_symbol = coding->symbol;
   coding->src_multibyte = STRING_MULTIBYTE (str);
   coding->dst_multibyte = 1;
+  coding->heading_ascii = 0;
+
   if (CODING_REQUIRE_DETECTION (coding))
     {
       /* See the comments in code_convert_region.  */
@@ -6433,6 +6437,7 @@ encode_coding_string (str, coding, nocopy)
   /* Try to skip the heading and tailing ASCIIs.  We can't skip them
      if we must run CCL program or there are compositions to
      encode.  */
+  coding->heading_ascii = 0;
   if (coding->type != coding_type_ccl
       && (! coding->cmp_data || coding->cmp_data->used == 0))
     {
@@ -7270,7 +7275,7 @@ Return the corresponding character.  */)
 }
 
 DEFUN ("encode-sjis-char", Fencode_sjis_char, Sencode_sjis_char, 1, 1, 0,
-       doc: /* Encode a Japanese character CHAR to shift_jis encoding.
+       doc: /* Encode a Japanese character CH to shift_jis encoding.
 Return the corresponding code in SJIS.  */)
      (ch)
      Lisp_Object ch;
@@ -7330,7 +7335,7 @@ Return the corresponding character.  */)
 }
 
 DEFUN ("encode-big5-char", Fencode_big5_char, Sencode_big5_char, 1, 1, 0,
-       doc: /* Encode the Big5 character CHAR to BIG5 coding system.
+       doc: /* Encode the Big5 character CH to BIG5 coding system.
 Return the corresponding character code in Big5.  */)
      (ch)
      Lisp_Object ch;