1 files changed, 2 insertions, 1 deletions

diff --git a/src/coding.c b/src/coding.c
index ab13f0311c0..64826ae16b9 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -6765,7 +6765,8 @@ produce_chars (struct coding_system *coding, Lisp_Object translation_table,
 
       while (buf < buf_end)
         {
-          int c = *buf, i;
+          int c = *buf;
+          ptrdiff_t i;
 
           if (c >= 0)
             {