diff --git a/security/keys/trusted-keys/trusted_tpm1.c b/security/keys/trusted-keys/trusted_tpm1.c
index bf0bf7f36970..e5a904b5c194 100644
--- a/security/keys/trusted-keys/trusted_tpm1.c
+++ b/security/keys/trusted-keys/trusted_tpm1.c
@@ -101,7 +101,7 @@ static inline void dump_tpm_buf(unsigned char *buf)
 static int TSS_rawhmac(unsigned char *digest, const unsigned char *key,
 		       unsigned int keylen, ...)
 {
-	struct hmac_sha1_ctx hmac_ctx;
+	struct hmac_sha1_ctx hmac_ctx __cleanup(hmac_sha1_zeroize_ctx);
 	va_list argp;
 	unsigned int dlen;
 	unsigned char *data;