1 files changed, 2 insertions, 2 deletions

diff --git a/src/coding.c b/src/coding.c
index 277a9b16678..6e20b47ee34 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -2146,7 +2146,7 @@ setup_coding_system (coding_system, coding)
                   elements (if integer) is designated to REG on request,
                   if an element is t, REG can be used by any charset,
                 nil: REG is never used.  */
-        for (charset = 0; charset < MAX_CHARSET; charset++)
+        for (charset = 0; charset <= MAX_CHARSET; charset++)
           CODING_SPEC_ISO_REQUESTED_DESIGNATION (coding, charset) = -1;
         for (i = 0; i < 4; i++)
           {
@@ -2207,7 +2207,7 @@ setup_coding_system (coding_system, coding)
               default_reg_bits &= 3;
           }
 
-        for (charset = 0; charset < MAX_CHARSET; charset++)
+        for (charset = 0; charset <= MAX_CHARSET; charset++)
           if (CHARSET_VALID_P (charset)
               && CODING_SPEC_ISO_REQUESTED_DESIGNATION (coding, charset) < 0)
             {