diff --git a/test/cmd_ut.c b/test/cmd_ut.c
index c96277d89a1..0b923ee7e2e 100644
--- a/test/cmd_ut.c
+++ b/test/cmd_ut.c
@@ -184,7 +184,7 @@ static int run_suite(struct unit_test_state *uts, struct suite *ste,
 		char prefix[30];
 
 		/* use a standard prefix */
-		snprintf(prefix, sizeof(prefix), "%s_test", ste->name);
+		snprintf(prefix, sizeof(prefix), "%s_test_", ste->name);
 		ret = cmd_ut_category(uts, ste->name, prefix, ste->start,
 				      n_ents, argc, argv);
 	}
diff --git a/test/py/tests/test_suite.py b/test/py/tests/test_suite.py
index 73c185349b4..ae127301fd7 100644
--- a/test/py/tests/test_suite.py
+++ b/test/py/tests/test_suite.py
@@ -66,11 +66,12 @@ def collect_info(cons, output):
             msg = m.group(3)
             if DEBUG_ME:
                 cons.log.info(f"test_name {test_name} msg '{msg}'")
-            if msg == ' (flat tree)' and test_name not in tests:
-                tests.add(test_name)
+            full_name = f'{cur_suite}.{test_name}'
+            if msg == ' (flat tree)' and full_name not in tests:
+                tests.add(full_name)
                 test_count += 1
             if not msg or 'skipped as it is manual' in msg:
-                tests.add(test_name)
+                tests.add(full_name)
                 test_count += 1
         if DEBUG_ME:
             cons.log.info(f'test_count {test_count}')
diff --git a/test/test-main.c b/test/test-main.c
index 597afa25f77..8c0d820032c 100644
--- a/test/test-main.c
+++ b/test/test-main.c
@@ -514,11 +514,12 @@ static int ut_run_test(struct unit_test_state *uts, struct unit_test *test,
  *	the first call to this function. On exit, @uts->cur.fail_count is
  *	incremented by the number of failures (0, one hopes)
  * @test: Test to run
+ * @leaf: Part of the name to show, or NULL to use test->name
  * Return: 0 if all tests passed, -EAGAIN if the test should be skipped, -1 if
  *	any failed
  */
 static int ut_run_test_live_flat(struct unit_test_state *uts,
-				 struct unit_test *test)
+				 struct unit_test *test, const char *leaf)
 {
 	int runs, ret;
 
@@ -530,7 +531,7 @@ static int ut_run_test_live_flat(struct unit_test_state *uts,
 	if (CONFIG_IS_ENABLED(OF_LIVE)) {
 		if (!(test->flags & UTF_FLAT_TREE)) {
 			uts->of_live = true;
-			ret = ut_run_test(uts, test, test->name);
+			ret = ut_run_test(uts, test, leaf ?: test->name);
 			if (ret != -EAGAIN) {
 				ut_assertok(ret);
 				runs++;
@@ -558,7 +559,7 @@ static int ut_run_test_live_flat(struct unit_test_state *uts,
 	    (!runs || ut_test_run_on_flattree(test)) &&
 	    !(gd->flags & GD_FLG_FDT_CHANGED)) {
 		uts->of_live = false;
-		ret = ut_run_test(uts, test, test->name);
+		ret = ut_run_test(uts, test, leaf ?: test->name);
 		if (ret != -EAGAIN) {
 			ut_assertok(ret);
 			runs++;
@@ -594,6 +595,7 @@ static int ut_run_tests(struct unit_test_state *uts, const char *prefix,
 			struct unit_test *tests, int count,
 			const char *select_name, const char *test_insert)
 {
+	int prefix_len = prefix ? strlen(prefix) : 0;
 	struct unit_test *test, *one;
 	int found = 0;
 	int pos = 0;
@@ -646,7 +648,7 @@ static int ut_run_tests(struct unit_test_state *uts, const char *prefix,
 
 		uts->cur.test_count++;
 		if (one && upto == pos) {
-			ret = ut_run_test_live_flat(uts, one);
+			ret = ut_run_test_live_flat(uts, one, NULL);
 			if (uts->cur.fail_count != old_fail_count) {
 				printf("Test '%s' failed %d times (position %d)\n",
 				       one->name,
@@ -656,8 +658,11 @@ static int ut_run_tests(struct unit_test_state *uts, const char *prefix,
 			return -EBADF;
 		}
 
+		if (prefix_len && !strncmp(test_name, prefix, prefix_len))
+			test_name = test_name + prefix_len;
+
 		for (i = 0; i < uts->runs_per_test; i++)
-			ret = ut_run_test_live_flat(uts, test);
+			ret = ut_run_test_live_flat(uts, test, test_name);
 		if (uts->cur.fail_count != old_fail_count) {
 			printf("Test '%s' failed %d times\n", test_name,
 			       uts->cur.fail_count - old_fail_count);