diff --git a/lib/string.c b/lib/string.c
index 43d0781..cb9ea21 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -598,7 +598,7 @@
 void memzero_explicit(void *s, size_t count)
 {
 	memset(s, 0, count);
-	OPTIMIZER_HIDE_VAR(s);
+	barrier();
 }
 EXPORT_SYMBOL(memzero_explicit);