diff --git a/tests/suites/test_suite_platform.function b/tests/suites/test_suite_platform.function
index bc39735..c65d011 100644
--- a/tests/suites/test_suite_platform.function
+++ b/tests/suites/test_suite_platform.function
@@ -126,6 +126,8 @@
 {
     unsigned char *buf;
     buf = mbedtls_calloc((size_t) num, (size_t) size);
+    /* Dummy usage of the pointer to prevent optimizing it */
+    mbedtls_printf("calloc pointer : %p\n", buf);
     TEST_ASSERT(buf == NULL);
 
 exit: