diff --git a/src/lib-sieve-tool/mail-raw.c b/src/lib-sieve-tool/mail-raw.c
index 72c59ec2805ec6792e18fbdb75ec094e2d4bde2c..c9268d7e473c6046a0cdb85a3086b9da30097ee6 100644
--- a/src/lib-sieve-tool/mail-raw.c
+++ b/src/lib-sieve-tool/mail-raw.c
@@ -173,7 +173,7 @@ void mail_raw_init
 		i_fatal("Raw user initialization failed: %s", errstr);
 
 	memset(&raw_ns_set, 0, sizeof(raw_ns_set));
-	raw_ns_set.location = "/tmp";
+	raw_ns_set.location = ":LAYOUT=none";
 
 	raw_ns = mail_namespaces_init_empty(raw_mail_user);
 	raw_ns->flags |= NAMESPACE_FLAG_NOQUOTA | NAMESPACE_FLAG_NOACL;