diff --git a/crypto/hash-gcrypt.c b/crypto/hash-gcrypt.c
index 8b305bd29aef78568ea5d09f6fca5e7af3bf3d87..8b093c7f51a8ad0d5827b42ce98c64747876fcd8 100644
--- a/crypto/hash-gcrypt.c
+++ b/crypto/hash-gcrypt.c
@@ -56,6 +56,7 @@ qcrypto_gcrypt_hash_bytesv(QCryptoHashAlgorithm alg,
                            size_t *resultlen,
                            Error **errp)
 {
+    int i;
     gcry_error_t ret;
     gcry_md_hd_t md;
     unsigned char *digest;