diff --git a/src/pam_sso/pam_sso_unittest.cc b/src/pam_sso/pam_sso_unittest.cc
index ccf934a870a9f03abd34a48f5b19de0027509989..11e5359da39d0e34db7d984d4fa81a8f88db2ce5 100644
--- a/src/pam_sso/pam_sso_unittest.cc
+++ b/src/pam_sso/pam_sso_unittest.cc
@@ -106,7 +106,7 @@ protected:
 };
 
 TEST_F(PAMTest, AuthOk) {
-  char *tkt_str = sign_ticket(sso_ticket_new("user", "service/", "domain", NULL, NULL, NULL, 7200));
+  char *tkt_str = sign_ticket(sso_ticket_new("user", "service/", "domain", NULL, NULL, 7200));
   test_pam_handle_t pamh = {"user", tkt_str};
   string key_arg(string("key=") + public_key_file);
   const char *pam_argv[] = {"service=service/", "domain=domain", "use_first_pass", key_arg.c_str(), NULL};
@@ -116,7 +116,7 @@ TEST_F(PAMTest, AuthOk) {
 }
 
 TEST_F(PAMTest, AuthFailIfNoKey) {
-  char *tkt_str = sign_ticket(sso_ticket_new("user", "service/", "domain", NULL, NULL, NULL, 7200));
+  char *tkt_str = sign_ticket(sso_ticket_new("user", "service/", "domain", NULL, NULL, 7200));
   test_pam_handle_t pamh = {"user", tkt_str};
   const char *pam_argv[] = {"service=another-service/", "domain=domain", "use_first_pass", NULL};
 
@@ -125,7 +125,7 @@ TEST_F(PAMTest, AuthFailIfNoKey) {
 }
 
 TEST_F(PAMTest, AuthFailOnBadService) {
-  char *tkt_str = sign_ticket(sso_ticket_new("user", "service/", "domain", NULL, NULL, NULL, 7200));
+  char *tkt_str = sign_ticket(sso_ticket_new("user", "service/", "domain", NULL, NULL, 7200));
   test_pam_handle_t pamh = {"user", tkt_str};
   string key_arg(string("key=") + public_key_file);
   const char *pam_argv[] = {"service=another-service/", "domain=domain", "use_first_pass", key_arg.c_str(), NULL};
@@ -135,7 +135,7 @@ TEST_F(PAMTest, AuthFailOnBadService) {
 }
 
 TEST_F(PAMTest, AuthFailIfDifferentUser) {
-  char *tkt_str = sign_ticket(sso_ticket_new("user", "service/", "domain", NULL, NULL, NULL, 7200));
+  char *tkt_str = sign_ticket(sso_ticket_new("user", "service/", "domain", NULL, NULL, 7200));
   test_pam_handle_t pamh = {"another_user", tkt_str};
   string key_arg(string("key=") + public_key_file);
   const char *pam_argv[] = {"service=service/", "domain=domain", "use_first_pass", key_arg.c_str(), NULL};