(base64_encode_1): Fix previous change.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/fns.c b/src/fns.c
index 2c458ba1766..87f752a8aae 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -3300,6 +3300,7 @@ base64_encode_1 (from, to, length, line_break, multibyte)
           if (CHAR_BYTE8_P (c))
             c = CHAR_TO_BYTE8 (c);
           else if (c >= 256)
+            return -1;
           i += bytes;
         }
       else