diff --git a/zephyr/test/vmh.c b/zephyr/test/vmh.c
index 0ed36c4d8691..005498db0721 100644
--- a/zephyr/test/vmh.c
+++ b/zephyr/test/vmh.c
@@ -14,11 +14,21 @@
 
 static int vmh_test(void)
 {
-	struct virtual_memory_heap *h = vmh_init_heap(NULL, MEM_REG_ATTR_CORE_HEAP, 0, false);
+	struct vmh_heap *h = vmh_init_heap(NULL, MEM_REG_ATTR_CORE_HEAP, 0, false);
 
 	if (!h)
 		return -EINVAL;
 
+	char *buf = vmh_alloc(h, 1616);
+
+	if (!buf)
+		return -ENOMEM;
+
+	buf[0] = 0;
+	buf[1615] = 15;
+
+	vmh_free(h, buf);
+
 	return vmh_free_heap(h);
 }