1 files changed, 1 insertions, 1 deletions

diff --git a/canohost.c b/canohost.c
index 4fafb0b82..b1c35e99e 100644
--- a/canohost.c
+++ b/canohost.c
@@ -88,7 +88,7 @@ get_remote_hostname(int sock, int use_dns)
          */
         for (i = 0; name[i]; i++)
                 if (isupper(name[i]))
-                        name[i] = tolower(name[i]);
+                        name[i] = (char)tolower(name[i]);
         /*
          * Map it back to an IP address and check that the given
          * address actually is an address of this host.  This is