diff --git a/crypto/modes/ocb128.c b/crypto/modes/ocb128.c
index 0d82e50..efa403b 100644
--- a/crypto/modes/ocb128.c
+++ b/crypto/modes/ocb128.c
@@ -588,10 +588,7 @@
 void CRYPTO_ocb128_cleanup(OCB128_CONTEXT *ctx)
 {
     if (ctx) {
-        if (ctx->l) {
-            OPENSSL_cleanse(ctx->l, ctx->max_l_index * 16);
-            OPENSSL_free(ctx->l);
-        }
+        OPENSSL_clear_free(ctx->l, ctx->max_l_index * 16);
         OPENSSL_cleanse(ctx, sizeof(*ctx));
     }
 }