diff --git a/lib/i18n/pl.json b/lib/i18n/pl.json
new file mode 100644
index 0000000..6a8ec53
--- /dev/null
+++ b/lib/i18n/pl.json
@@ -0,0 +1,81 @@
+{
+    "useLongScale": false,
+    "baseSeparator": " ",
+    "unitSeparator": "",
+    "base": {
+        "0": "zero",
+        "1": "jeden",
+        "2": "dwa",
+        "3": "trzy",
+        "4": "cztery",
+        "5": "pięć",
+        "6": "sześć",
+        "7": "siedem",
+        "8": "osiem",
+        "9": "dziewięć",
+        "10": "dziesięć",
+        "11": "jedenaście",
+        "12": "dwanaście",
+        "13": "trzynaście",
+        "14": "czternaście",
+        "15": "piętnaście",
+        "16": "szesnaście",
+        "17": "siedemnaście",
+        "18": "osiemnaście",
+        "19": "dzięwiętnaście",
+        "20": "dwadzieścia",
+        "30": "trzydzieści",
+        "40": "czterdzieści",
+        "50": "pięćdziesiąt",
+        "60": "sześćdziesiąt",
+        "70": "siedemdziesiąt",
+        "80": "osiemdziesiąt",
+        "90": "dziewięćdziesiąt",
+        "100": "sto",
+        "200": "dwieście",
+        "300": "trzysta",
+        "400": "czterysta",
+        "500": "pięćset",
+        "600": "sześćset",
+        "700": "siedemset",
+        "800": "osiemset",
+        "900": "dziewięćset"
+    },
+    "units": [
+        {
+            "useBaseInstead": true,
+            "useBaseException": []
+        },
+        {
+            "singular": "tysiąc",
+            "few": "tysiące",
+            "plural": "tysięcy",
+            "useSingularEnding": true,
+            "useFewEnding": true,
+            "avoidPrefixException": [
+                1
+            ]
+        },
+        {
+            "singular": "milion",
+            "few": "miliony",
+            "plural": "milionów",
+            "useSingularEnding": true,
+            "useFewEnding": true,
+            "avoidPrefixException": [
+                1
+            ]
+        },
+        {
+            "singular": "bilion",
+            "few": "biliony",
+            "plural": "bilionów",
+            "useSingularEnding": true,
+            "useFewEnding": true,
+            "avoidPrefixException": [
+                1
+            ]
+        }
+    ],
+    "unitExceptions": []
+}
\ No newline at end of file
diff --git a/lib/index.js b/lib/index.js
index 4114399..1cac13e 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -2,7 +2,7 @@
 exports = module.exports = writtenNumber;
 var util = require("./util");
 
-var languages = ["en", "es", "ar", "az", "pt", "fr", "eo", "it", "vi", "tr", "uk", "ru", "id"];
+var languages = ["en", "es", "ar", "az", "pt", "fr", "eo", "it", "vi", "tr", "uk", "ru", "id", "pl"];
 var i18n = {
   en: require("./i18n/en.json"),
   es: require("./i18n/es.json"),
@@ -19,7 +19,8 @@ var i18n = {
   enIndian: require("./i18n/en-indian.json"),
   uk: require("./i18n/uk.json"),
   ru: require("./i18n/ru.json"),
-  id: require("./i18n/id.json")
+  id: require("./i18n/id.json"),
+  pl: require("./i18n/pl.json")
 };
 exports.i18n = i18n;
 
@@ -68,7 +69,7 @@ function writtenNumber(n, options) {
 
     language = i18n[writtenNumber.defaults.lang];
   }
-  
+
   var scale = language.useLongScale ? longScale : shortScale;
   var units = language.units;
   var unit;
@@ -86,7 +87,7 @@ function writtenNumber(n, options) {
   }
 
   var baseCardinals = language.base;
-  var alternativeBaseCardinals = options.alternativeBase 
+  var alternativeBaseCardinals = options.alternativeBase
     ? language.alternativeBase[options.alternativeBase]
     : {};
 
@@ -153,10 +154,10 @@ function writtenNumber(n, options) {
       str = unit.plural && (!unit.avoidInNumberPlural || !m)
         ? unit.plural
         : unit.singular;
-      
+
       // Languages with dual
       str = (r === 2 && unit.dual) ? unit.dual : str;
-      
+
       // "restrictedPlural" : use plural only for 3 to 10
       str = (r > 10 && unit.restrictedPlural) ? unit.singular : str;
     }
@@ -201,11 +202,11 @@ function writtenNumber(n, options) {
       ret.slice(1)
     );
   }
-  
+
   // Languages that have separators for all cardinals.
   if (language.allSeparator) {
-    for (var j = 0; j < ret.length-1; j++) {
-      ret[j] = language.allSeparator + ret[j];      
+    for (var j = 0; j < ret.length - 1; j++) {
+      ret[j] = language.allSeparator + ret[j];
     }
   }
   var result = ret.reverse().join(" ");