diff --git a/programs/reg/tests/reg.c b/programs/reg/tests/reg.c
index 81c94955da8..04c995ef3a7 100644
--- a/programs/reg/tests/reg.c
+++ b/programs/reg/tests/reg.c
@@ -227,6 +227,12 @@ static void test_add(void)
     run_reg_exe("reg add /?", &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
 
+    run_reg_exe("reg add /h", &r);
+    ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
+    run_reg_exe("reg add -H", &r);
+    todo_wine ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
     err = RegDeleteKeyA(HKEY_CURRENT_USER, KEY_BASE);
     ok(err == ERROR_SUCCESS || err == ERROR_FILE_NOT_FOUND, "got %d\n", err);
 
@@ -608,6 +614,12 @@ static void test_delete(void)
     run_reg_exe("reg delete /?", &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
 
+    run_reg_exe("reg delete /h", &r);
+    ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
+    run_reg_exe("reg delete -H", &r);
+    todo_wine ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
     add_key(HKEY_CURRENT_USER, KEY_BASE, &hkey);
     add_value(hkey, "foo", REG_DWORD, &deadbeef, sizeof(deadbeef));
     add_value(hkey, "bar", REG_DWORD, &deadbeef, sizeof(deadbeef));
@@ -660,6 +672,12 @@ static void test_query(void)
     run_reg_exe("reg query /?", &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
 
+    run_reg_exe("reg query /h", &r);
+    ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
+    run_reg_exe("reg query -H", &r);
+    todo_wine ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
     /* Create a test key */
     add_key(HKEY_CURRENT_USER, KEY_BASE, &key);
 
@@ -848,6 +866,12 @@ static void test_import(void)
     run_reg_exe("reg import /?", &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
 
+    run_reg_exe("reg import /h", &r);
+    ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
+    run_reg_exe("reg import -H", &r);
+    todo_wine ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
     run_reg_exe("reg import missing.reg", &r);
     ok(r == REG_EXIT_FAILURE, "got exit code %d, expected 1\n", r);
 
@@ -4391,6 +4415,12 @@ static void test_export(void)
     run_reg_exe("reg export /?", &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
 
+    run_reg_exe("reg export /h", &r);
+    ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
+    run_reg_exe("reg export -H", &r);
+    todo_wine ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
+
     run_reg_exe("reg export \\\\remote-pc\\HKLM\\Wine file.reg", &r);
     ok(r == REG_EXIT_FAILURE, "got exit code %d, expected 1\n", r);