diff --git a/src/libsodium/include/sodium/crypto_hash.h b/src/libsodium/include/sodium/crypto_hash.h
index eef28d8c..37126a27 100644
--- a/src/libsodium/include/sodium/crypto_hash.h
+++ b/src/libsodium/include/sodium/crypto_hash.h
@@ -4,6 +4,7 @@
 #include "crypto_hash_sha512.h"
 
 #define crypto_hash_BYTES crypto_hash_sha512_BYTES
+#define crypto_hash_BLOCKBYTES crypto_hash_sha512_BLOCKBYTES
 #define crypto_hash_PRIMITIVE "sha512"
 
 #ifdef __cplusplus
diff --git a/src/libsodium/include/sodium/crypto_hash_sha256.h b/src/libsodium/include/sodium/crypto_hash_sha256.h
index dbd729ff..1677827c 100644
--- a/src/libsodium/include/sodium/crypto_hash_sha256.h
+++ b/src/libsodium/include/sodium/crypto_hash_sha256.h
@@ -2,6 +2,7 @@
 #define crypto_hash_sha256_H
 
 #define crypto_hash_sha256_BYTES 32
+#define crypto_hash_sha256_BLOCKBYTES 64
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/src/libsodium/include/sodium/crypto_hash_sha512.h b/src/libsodium/include/sodium/crypto_hash_sha512.h
index b5560ef4..3bac1b80 100644
--- a/src/libsodium/include/sodium/crypto_hash_sha512.h
+++ b/src/libsodium/include/sodium/crypto_hash_sha512.h
@@ -2,6 +2,7 @@
 #define crypto_hash_sha512_H
 
 #define crypto_hash_sha512_BYTES 64
+#define crypto_hash_sha512_BLOCKBYTES 128
 
 #ifdef __cplusplus
 extern "C" {