X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/36771878fa93a04ecf5bdd71ad3c3c380a16aa03..86ddd98d63910f57b5aaacc6d77e09aa65b10b32:/src/src/moan.c

diff --git a/src/src/moan.c b/src/src/moan.c
index bf5483ce3..1d9c5b9a5 100644
--- a/src/src/moan.c
+++ b/src/src/moan.c
@@ -86,7 +86,8 @@ if (h || message_id)
   fprintf(fp, "References:");
   if (h)
     {
-    uschar * s, * id, * error;
+    const uschar * s;
+    uschar * id, * error;
     uschar * referenced_ids[12];
     int reference_count = 0;