diff --git a/tests/kernel/mem_pool/mem_pool_threadsafe/src/main.c b/tests/kernel/mem_pool/mem_pool_threadsafe/src/main.c
index c85f6b0658a..6f701232196 100644
--- a/tests/kernel/mem_pool/mem_pool_threadsafe/src/main.c
+++ b/tests/kernel/mem_pool/mem_pool_threadsafe/src/main.c
@@ -11,11 +11,11 @@
 #define POOL_NUM 2
 #define LOOPS 10
 #define TIMEOUT 200
-#define BLK_SIZE_MIN 8
-#define BLK_SIZE_MAX 32
+#define BLK_SIZE_MIN _MPOOL_MINBLK
+#define BLK_SIZE_MAX (4 * BLK_SIZE_MIN)
 #define BLK_NUM_MIN 8
 #define BLK_NUM_MAX 2
-#define BLK_ALIGN BLK_SIZE_MIN
+#define BLK_ALIGN sizeof(void *)
 
 K_MEM_POOL_DEFINE(mpool1, BLK_SIZE_MIN, BLK_SIZE_MAX, BLK_NUM_MAX, BLK_ALIGN);
 K_MEM_POOL_DEFINE(mpool2, BLK_SIZE_MIN, BLK_SIZE_MAX, BLK_NUM_MAX, BLK_ALIGN);