diff --git a/lib/test_stackinit.c b/lib/test_stackinit.c
index a3c74e6a21ff..56653c6a2a61 100644
--- a/lib/test_stackinit.c
+++ b/lib/test_stackinit.c
@@ -259,6 +259,7 @@ static noinline __init int test_ ## name (void)			\
 static noinline __init DO_NOTHING_TYPE_ ## which(var_type)	\
 do_nothing_ ## name(var_type *ptr)				\
 {								\
+	OPTIMIZER_HIDE_VAR(ptr);				\
 	/* Will always be true, but compiler doesn't know. */	\
 	if ((unsigned long)ptr > 0x2)				\
 		return DO_NOTHING_RETURN_ ## which(ptr);	\