diff --git a/test/default/chacha20.c b/test/default/chacha20.c
index 4be4fa26..6dbc16c8 100644
--- a/test/default/chacha20.c
+++ b/test/default/chacha20.c
@@ -15,6 +15,7 @@ static void tv(void)
         {"0000000000000000000000000000000000000000000000000000000000000001","0000000000000000"},
         {"0000000000000000000000000000000000000000000000000000000000000000","0000000000000001"},
         {"0000000000000000000000000000000000000000000000000000000000000000","0100000000000000"},
+        {"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f","0001020304050607"}
     };
     unsigned char key[crypto_stream_chacha20_KEYBYTES];
     unsigned char nonce[crypto_stream_chacha20_NONCEBYTES];
diff --git a/test/default/chacha20.exp b/test/default/chacha20.exp
index bd6ede99..6ba341d7 100644
--- a/test/default/chacha20.exp
+++ b/test/default/chacha20.exp
@@ -2,3 +2,4 @@
 [4540f05a9f1fb296d7736e7b208e3c96eb4fe1834688d2604f450952ed432d41bbe2a0b6ea7566d2a5d1e7e20d42af2c53d792b1c43fea817e9ad275]
 [de9cba7bf3d69ef5e786dc63973f653a0b49e015adbff7134fcb7df137821031e85a050278a7084527214f73efc7fa5b5277062eb7a0433e445f41e3]
 [ef3fdfd6c61578fbf5cf35bd3dd33b8009631634d21e42ac33960bd138e50d32111e4caf237ee53ca8ad6426194a88545ddc497a0b466e7d6bbdb004]
+[f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56f85ac3c134a4547b733b46413042c9440049176905d3be59ea1c53f15916155c]