diff --git a/resources/i18n/pl/cura.po b/resources/i18n/pl/cura.po
index de790d3348..ad615743a9 100644
--- a/resources/i18n/pl/cura.po
+++ b/resources/i18n/pl/cura.po
@@ -1,17 +1,19 @@
-# English translations for PACKAGE package.
-# Copyright (C) 2017 THE PACKAGE'S COPYRIGHT HOLDER
-# This file is distributed under the same license as the PACKAGE package.
-# Automatically generated, 2017.
+# Cura
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: \n"
-"Report-Msgid-Bugs-To: \n"
+"Project-Id-Version: Cura 2.6\n"
+"Report-Msgid-Bugs-To: r.dulek@ultimaker.com\n"
 "POT-Creation-Date: 2017-05-30 15:32+0200\n"
-"PO-Revision-Date: 2017-07-19 12:47+0200\n"
-"Last-Translator: Automatically generated\n"
-"Language-Team: none\n"
-"Language: pl_PL\n"
+"PO-Revision-Date: 2017-07-26 6:39+0200\n"
+"Last-Translator: jagus85 and anraf1001\n"
+"Language-Team: reprapy.pl\n"
+"Language: Polish\n"
+"Lang-Code: pl\n"
+"Country-Code: PL\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/resources/i18n/pl/fdmextruder.def.json.po b/resources/i18n/pl/fdmextruder.def.json.po
index ead3e37bec..a3780f2a65 100644
--- a/resources/i18n/pl/fdmextruder.def.json.po
+++ b/resources/i18n/pl/fdmextruder.def.json.po
@@ -1,12 +1,19 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 msgid ""
 msgstr ""
-"Project-Id-Version: Cura\n"
-"Report-Msgid-Bugs-To: http://github.com/Ultimaker/Cura\n"
-"POT-Creation-Date: 2017-03-27 17:27+0000\n"
+"Project-Id-Version: Cura 2.6\n"
+"Report-Msgid-Bugs-To: r.dulek@ultimaker.com\n"
+"POT-Creation-Date: 2017-05-30 15:32+0000\n"
 "PO-Revision-Date: 2017-07-20 16:49+0200\n"
-"Last-Translator: Automatically generated\n"
-"Language-Team: Polish\n"
-"Language: pl_PL\n"
+"Last-Translator: jagus85 and anraf1001\n"
+"Language-Team: reprapy.pl\n"
+"Language: Polish\n"
+"Lang-Code: pl\n"
+"Country-Code: PL\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/resources/i18n/pl/fdmprinter.def.json.po b/resources/i18n/pl/fdmprinter.def.json.po
index 2b503432bb..34f73738b2 100644
--- a/resources/i18n/pl/fdmprinter.def.json.po
+++ b/resources/i18n/pl/fdmprinter.def.json.po
@@ -1,14 +1,19 @@
+# Cura JSON setting files
+# Copyright (C) 2017 Ultimaker
+# This file is distributed under the same license as the Cura package.
+# Ruben Dulek <r.dulek@ultimaker.com>, 2017.
+#
 msgid ""
 msgstr ""
 "Project-Id-Version: Cura 2.6\n"
 "Report-Msgid-Bugs-To: r.dulek@ultimaker.com\n"
 "POT-Creation-Date: 2017-05-30 15:32+0000\n"
 "PO-Revision-Date: 2017-07-24 11:51+0200\n"
-"Last-Translator: Bothof <info@bothof.nl>\n"
-"Language-Team: Polish\n"
-"Language: pl_PL\n"
-"Lang-Code: de\n"
-"Country-Code: DE\n"
+"Last-Translator: jagus85 and anraf1001\n"
+"Language-Team: reprapy.pl\n"
+"Language: Polish\n"
+"Lang-Code: pl\n"
+"Country-Code: PL\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"