1 files changed, 1 insertions, 1 deletions
diff --git a/cipher/sha1.c b/cipher/sha1.c
index 554d55ce..0de84121 100644
--- a/cipher/sha1.c
+++ b/cipher/sha1.c
@@ -573,7 +573,7 @@ gcry_md_spec_t _gcry_digest_spec_sha1 =
   {
     GCRY_MD_SHA1, {0, 1},
     "SHA1", asn, DIM (asn), oid_spec_sha1, 20,
-    sha1_init, _gcry_md_block_write, sha1_final, sha1_read,
+    sha1_init, _gcry_md_block_write, sha1_final, sha1_read, NULL,
     sizeof (SHA1_CONTEXT),
     run_selftests
   };