diff --git a/tests/unittests/test_cmd_roster.c b/tests/unittests/test_cmd_roster.c
index ecd9b2e2..563ff9ca 100644
--- a/tests/unittests/test_cmd_roster.c
+++ b/tests/unittests/test_cmd_roster.c
@@ -57,6 +57,7 @@ void cmd_roster_shows_roster_when_no_args(void **state)
     gboolean result = cmd_roster(NULL, CMD_ROSTER, args);
     assert_true(result);
 
+    g_slist_free(roster);
     roster_destroy();
 }
 
@@ -176,6 +177,8 @@ void cmd_roster_nick_sends_name_change_request(void **state)
 
     PContact contact = roster_get_contact(jid);
     assert_string_equal(p_contact_name(contact), nick);
+
+    g_slist_free(groups);
     roster_destroy();
 }
 
@@ -231,5 +234,6 @@ void cmd_roster_clearnick_sends_name_change_request_with_empty_nick(void **state
     PContact contact = roster_get_contact(jid);
     assert_null(p_contact_name(contact));
 
+    g_slist_free(groups);
     roster_destroy();
 }