diff --git a/src/libsodium/include/sodium/crypto_pwhash_scryptsalsa208sha256.h b/src/libsodium/include/sodium/crypto_pwhash_scryptsalsa208sha256.h
index 9b5c2a8d..9f693e54 100644
--- a/src/libsodium/include/sodium/crypto_pwhash_scryptsalsa208sha256.h
+++ b/src/libsodium/include/sodium/crypto_pwhash_scryptsalsa208sha256.h
@@ -54,7 +54,7 @@ size_t crypto_pwhash_scryptsalsa208sha256_opslimit_max(void);
 SODIUM_EXPORT
 size_t crypto_pwhash_scryptsalsa208sha256_memlimit_min(void);
 
-#define crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MAX ((SIZE_MAX >= 68719476736U) ? : 68719476736U : SIZE_MAX)
+#define crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MAX ((SIZE_MAX >= 68719476736U) ? 68719476736U : SIZE_MAX)
 SODIUM_EXPORT
 size_t crypto_pwhash_scryptsalsa208sha256_memlimit_max(void);
 
diff --git a/src/libsodium/randombytes/randombytes.c b/src/libsodium/randombytes/randombytes.c
index e1a109a3..dc0f81c3 100644
--- a/src/libsodium/randombytes/randombytes.c
+++ b/src/libsodium/randombytes/randombytes.c
@@ -169,9 +169,11 @@ randombytes_buf_deterministic(void * const buf, const size_t size,
     static const unsigned char zero[crypto_stream_chacha20_ietf_NONCEBYTES] = { 0 };
 
     COMPILER_ASSERT(randombytes_SEEDBYTES == crypto_stream_chacha20_ietf_KEYBYTES);
+#if SIZE_MAX > 0x4000000000ULL
     if (size > 0x4000000000ULL) {
         abort();
     }
+#endif
     crypto_stream_chacha20_ietf((unsigned char *) buf, (unsigned long long) size,
                                 zero, seed);
 }