diff --git a/test/data/mnemonic-portuguese.json b/test/data/mnemonic-portuguese.json
new file mode 100644
index 00000000..4a7909ec
--- /dev/null
+++ b/test/data/mnemonic-portuguese.json
@@ -0,0 +1,30 @@
+[
+  [
+    "00000000000000000000000000000000",
+    "abacate abacate abacate abacate abacate abacate abacate abacate abacate abacate abacate abater",
+    "https://iancoleman.io/bip39/#portuguese",
+    "310b9658971242b9192717c83c0f2656913d7d8028d7ec556e92c3c71168cc60a457b88cd1ee998871c3afb4dd6339375e5526e16eabb11142ad7e89033fff38",
+    "xprv9s21ZrQH143K2QUuKjgvQqqeUvTM269XQLp9bq1PkUoJZjfzPPJRZtBTUY7BtqLGjSupBjcWcygkdrUc7xcBY12xfaBMGixnw83HRK11HiP"
+  ],
+  [
+    "7b299ca1eae745e03160702d45fab2231c930c9af1f55fd1d9a953a383a13104",
+    "heresia dialeto borracha rugido ginasta travar pupilo alusivo caju cansado ofensiva debulhar rapadura ironizar forjar convite evasivo leigo flechada nervoso cidade resolver prometer jorrar",
+    "https://iancoleman.io/bip39/#portuguese",
+    "64f70e96ad2a77550e7108e493a077b8d15667b7800fd9c9384b073dd0dea61fdee8bf0e89afd9f9c273ce04c73292e37e724d78c12050dec452526ac44b505a",
+    "xprv9s21ZrQH143K2nNrkwhyctoQ9kwvnzCGVakLm8LhzNHuE58tYsaHg7b6EV7NM2kDPutPu6JLxVMjGrVTr3YwUFDN2DtrNnFezwNA9V2H3kc"
+  ],
+  [
+    "2cd87f318e429cc2dc5b13682a3cb0c1",
+    "caiaque projeto recuar axila brochura exemplo garrafa exposto ficar duplo cachorro inibido",
+    "https://iancoleman.io/bip39/#portuguese",
+    "32b1452637cac7201550d0b6012dba0f81fc03bb5b25902cafc80e0fbc87c6dcd10dc7524d14b21964f3a1ee2fd028994685a149b48859c5fd12f66ba6fb8208",
+    "xprv9s21ZrQH143K3LF8znZ3QBkP4mckt88f67pVbJx9SRiBB9QownrK1M7Td3Z5kbPrps2nzMDjyNX97fujPr7SQKMEF4KQd5iyBDNjPbfrQRY"
+  ],
+  [
+    "2cd87f318e429cc2dc5b13682a3cb0c1",
+    "caiaque projeto recuar axila brochura exemplo garrafa exposto ficar duplo cachorro inibido",
+    "",
+    "273fdf21a3bd9ee074e44eb2af868e1594290c12017027b8da434b83c5842b783900e79467c41664e152c67c71a1dd9be4c17de90a2d9ebe3d78095bbafbb24e",
+    "xprv9s21ZrQH143K4QiuYZPvfS2vdcyL1FPE2tAYJfbAFR83ZLoYbMHNNRGcnbCuctbufgU4AmbujNMvWpPT49LBB7y8VY49bVCpyn7bp8ZQKhb"
+  ]
+]
diff --git a/test/mnemonic-test.js b/test/mnemonic-test.js
index 76ac2c6f..6d0b338a 100644
--- a/test/mnemonic-test.js
+++ b/test/mnemonic-test.js
@@ -6,7 +6,8 @@ const HDPrivateKey = require('../lib/hd/private');
 
 const tests = {
   english: require('./data/mnemonic-english.json'),
-  japanese: require('./data/mnemonic-japanese.json')
+  japanese: require('./data/mnemonic-japanese.json'),
+  portuguese: require('./data/mnemonic-portuguese.json')
 };
 
 describe('Mnemonic', function() {