1 files changed, 3 insertions, 0 deletions
diff --git a/hash.h b/hash.h
index 80881eea47..1bcf7ab6fd 100644
--- a/hash.h
+++ b/hash.h
@@ -81,6 +81,9 @@ struct git_hash_algo {
 	/* The length of the hash in hex characters. */
 	size_t hexsz;
 
+	/* The block size of the hash. */
+	size_t blksz;
+
 	/* The hash initialization function. */
 	git_hash_init_fn init_fn;