X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/5d758a462abebb9885f2e596f7892479812de125..1ba28e2b955b005ce4825fec792df17f75a8de1e:/src/src/transport.c

diff --git a/src/src/transport.c b/src/src/transport.c
index 504ef9e06..1bf7ee5e0 100644
--- a/src/src/transport.c
+++ b/src/src/transport.c
@@ -324,7 +324,7 @@ Returns:      the yield of transport_write_block()
 */
 
 BOOL
-transport_write_string(int fd, char *format, ...)
+transport_write_string(int fd, const char *format, ...)
 {
 va_list ap;
 va_start(ap, format);