diff --git a/PoWTests/ethash_tests.json b/PoWTests/ethash_tests.json
index 4ce41ac6d..ceacd78a7 100644
--- a/PoWTests/ethash_tests.json
+++ b/PoWTests/ethash_tests.json
@@ -9,5 +9,16 @@
         "full_size": 1073739904, 
         "header_hash": "2a8de2adf89af77358250bf908bf04ba94a6e8c3ba87775564a41d269a05e4ce", 
         "cache_hash": "35ded12eecf2ce2e8da2e15c06d463aae9b84cb2530a00b932e4bbc484cde353"
+    },
+    "second": {
+        "nonce": "307692cf71b12f6d", 
+        "mixhash": "e55d02c555a7969361cf74a9ec6211d8c14e4517930a00442f171bdb1698d175", 
+        "header": "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", 
+        "seed": "0000000000000000000000000000000000000000000000000000000000000000", 
+        "result": "ab9b13423cface72cbec8424221651bc2e384ef0f7a560e038fc68c8d8684829", 
+        "cache_size": 16776896, 
+        "full_size": 1073739904, 
+        "header_hash": "100cbec5e5ef82991290d0d93d758f19082e71f234cf479192a8b94df6da6bfe", 
+        "cache_hash": "35ded12eecf2ce2e8da2e15c06d463aae9b84cb2530a00b932e4bbc484cde353"
     }
 }