diff --git a/tests/msgbuf.cpp b/tests/msgbuf.cpp
index 6623fe0..15b0265 100644
--- a/tests/msgbuf.cpp
+++ b/tests/msgbuf.cpp
@@ -47,9 +47,8 @@
 {
     struct pldm_msgbuf _ctx;
     struct pldm_msgbuf* ctx = &_ctx;
-    // This is an intrinsic part of the test.
     // NOLINTNEXTLINE(performance-no-int-to-ptr)
-    uint8_t* buf = (uint8_t*)SIZE_MAX;
+    void* buf = (void*)UINTPTR_MAX;
 
     EXPECT_NE(pldm_msgbuf_init(ctx, 0, buf, 2), PLDM_SUCCESS);
 }
@@ -720,4 +719,4 @@
 
     EXPECT_EQ(pldm_msgbuf_destroy(ctxExtract), PLDM_SUCCESS);
     EXPECT_EQ(pldm_msgbuf_destroy(ctx), PLDM_SUCCESS);
-}
\ No newline at end of file
+}