diff --git a/src/lib-sieve-tool/mail-raw.c b/src/lib-sieve-tool/mail-raw.c
index 712060481539d7f66ec5da51f08701c7d7356544..09a212f5c6de1b561fe98db2c9e906fa5fe3e942 100644
--- a/src/lib-sieve-tool/mail-raw.c
+++ b/src/lib-sieve-tool/mail-raw.c
@@ -4,7 +4,6 @@
 #include "lib.h"
 #include "istream.h"
 #include "istream-seekable.h"
-#include "fd-set-nonblock.h"
 #include "str.h"
 #include "str-sanitize.h"
 #include "strescape.h"