diff --git a/tests/test_cmd_account.c b/tests/test_cmd_account.c
index 33ba348b..ee4fb673 100644
--- a/tests/test_cmd_account.c
+++ b/tests/test_cmd_account.c
@@ -53,7 +53,7 @@ void cmd_account_shows_account_when_connected_and_no_args(void **state)
 void cmd_account_list_shows_accounts(void **state)
 {
     CommandHelp *help = malloc(sizeof(CommandHelp));
-    gchar *args[] = { "list" };
+    gchar *args[] = { "list", NULL };
 
     gchar **accounts = malloc(sizeof(gchar *) * 4);
     accounts[0] = strdup("account1");
@@ -70,3 +70,17 @@ void cmd_account_list_shows_accounts(void **state)
 
     free(help);
 }
+
+void cmd_account_show_shows_usage_when_no_arg(void **state)
+{
+    CommandHelp *help = malloc(sizeof(CommandHelp));
+    help->usage = "some usage";
+    gchar *args[] = { "show", NULL };
+
+    expect_string(cons_show, output, "Usage: some usage");
+    
+    gboolean result = cmd_account(args, *help);
+    assert_true(result);
+
+    free(help);
+}
diff --git a/tests/test_cmd_account.h b/tests/test_cmd_account.h
index 2232b6aa..682c1c4a 100644
--- a/tests/test_cmd_account.h
+++ b/tests/test_cmd_account.h
@@ -1,3 +1,4 @@
 void cmd_account_shows_usage_when_not_connected_and_no_args(void **state);
 void cmd_account_shows_account_when_connected_and_no_args(void **state);
 void cmd_account_list_shows_accounts(void **state);
+void cmd_account_show_shows_usage_when_no_arg(void **state);
diff --git a/tests/testsuite.c b/tests/testsuite.c
index f594a35e..3d62f84f 100644
--- a/tests/testsuite.c
+++ b/tests/testsuite.c
@@ -31,6 +31,7 @@ int main(int argc, char* argv[]) {
         unit_test(cmd_account_shows_usage_when_not_connected_and_no_args),
         unit_test(cmd_account_shows_account_when_connected_and_no_args),
         unit_test(cmd_account_list_shows_accounts),
+        unit_test(cmd_account_show_shows_usage_when_no_arg),
 
         unit_test(cmd_rooms_shows_message_when_disconnected),
         unit_test(cmd_rooms_shows_message_when_disconnecting),