X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/d7f31bb61bd2255d45470d238680ac53eca62264..1f20760b17087817459e6c6baffa28de4b7d5aa2:/src/src/base64.c

diff --git a/src/src/base64.c b/src/src/base64.c
index f3c458470..289383b66 100644
--- a/src/src/base64.c
+++ b/src/src/base64.c
@@ -242,7 +242,7 @@ static uschar *enc64table =
   US"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
 uschar *
-b64encode(uschar *clear, int len)
+b64encode(const uschar * clear, int len)
 {
 uschar *code = store_get(4*((len+2)/3) + 1);
 uschar *p = code;