diff --git a/tests/kernel/mutex/mutex_api/src/test_mutex_apis.c b/tests/kernel/mutex/mutex_api/src/test_mutex_apis.c
index 2f45e6840016..1a5c3211d452 100644
--- a/tests/kernel/mutex/mutex_api/src/test_mutex_apis.c
+++ b/tests/kernel/mutex/mutex_api/src/test_mutex_apis.c
@@ -26,6 +26,15 @@ static struct k_thread tdata;
 static struct k_thread tdata2;
 static struct k_thread tdata3;
 
+
+
+/**
+ * @defgroup kernel_mutex_tests Mutexes
+ * @ingroup all_tests
+ * @{
+ * @}
+ */
+
 static void tThread_entry_lock_forever(void *p1, void *p2, void *p3)
 {
 	zassert_false(k_mutex_lock((struct k_mutex *)p1, K_FOREVER) == 0,
diff --git a/tests/kernel/semaphore/semaphore/src/main.c b/tests/kernel/semaphore/semaphore/src/main.c
index c1efcb8889c9..97816a3a47af 100644
--- a/tests/kernel/semaphore/semaphore/src/main.c
+++ b/tests/kernel/semaphore/semaphore/src/main.c
@@ -8,6 +8,14 @@
 #include <zephyr/irq_offload.h>
 #include <zephyr/ztest_error_hook.h>
 
+
+/**
+ * @defgroup kernel_semaphore_tests Semaphores
+ * @ingroup all_tests
+ * @{
+ * @}
+ */
+
 /* Macro declarations */
 #define SEM_INIT_VAL (0U)
 #define SEM_MAX_VAL  (10U)
@@ -271,7 +279,7 @@ ZTEST(semaphore, test_sem_thread2isr)
 }
 
 /**
- * @brief Test semaphore initialization at running time
+ * @brief Test semaphore initialization at runtime
  * @details
  * - Initialize a semaphore with valid count and max limit.
  * - Initialize a semaphore with invalid max limit.