diff --git a/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pwhash_scryptsalsa208sha256.c b/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pwhash_scryptsalsa208sha256.c
index b4e64a5a..50b0b0ff 100644
--- a/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pwhash_scryptsalsa208sha256.c
+++ b/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pwhash_scryptsalsa208sha256.c
@@ -61,6 +61,12 @@ crypto_pwhash_scryptsalsa208sha256_strbytes(void)
     return crypto_pwhash_scryptsalsa208sha256_STRBYTES;
 }
 
+const char *
+crypto_pwhash_scryptsalsa208sha256_strprefix(void)
+{
+    return crypto_pwhash_scryptsalsa208sha256_STRPREFIX;
+}
+
 size_t
 crypto_pwhash_scryptsalsa208sha256_opslimit_interactive(void)
 {
diff --git a/src/libsodium/include/sodium/crypto_pwhash_scryptsalsa208sha256.h b/src/libsodium/include/sodium/crypto_pwhash_scryptsalsa208sha256.h
index 7de83955..b97bce2c 100644
--- a/src/libsodium/include/sodium/crypto_pwhash_scryptsalsa208sha256.h
+++ b/src/libsodium/include/sodium/crypto_pwhash_scryptsalsa208sha256.h
@@ -20,6 +20,10 @@ size_t crypto_pwhash_scryptsalsa208sha256_saltbytes(void);
 SODIUM_EXPORT
 size_t crypto_pwhash_scryptsalsa208sha256_strbytes(void);
 
+#define crypto_pwhash_scryptsalsa208sha256_STRPREFIX "$7$"
+SODIUM_EXPORT
+const char *crypto_pwhash_scryptsalsa208sha256_strprefix(void);
+
 #define crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVE 524288ULL
 SODIUM_EXPORT
 size_t crypto_pwhash_scryptsalsa208sha256_opslimit_interactive(void);