diff --git a/plugins/XmlMaterialProfile/XmlMaterialUpgrader.py b/plugins/XmlMaterialProfile/XmlMaterialUpgrader.py
index 9f5b3cef9d..8f1d1e9ec6 100644
--- a/plugins/XmlMaterialProfile/XmlMaterialUpgrader.py
+++ b/plugins/XmlMaterialProfile/XmlMaterialUpgrader.py
@@ -1,62 +1,62 @@
-# Copyright (c) 2017 Ultimaker B.V.
-# Cura is released under the terms of the AGPLv3 or higher.
-
-import xml.etree.ElementTree as ET
-
-from UM.VersionUpgrade import VersionUpgrade
-
-
-class XmlMaterialUpgrader(VersionUpgrade):
-    def getXmlVersion(self, serialized):
-        data = ET.fromstring(serialized)
-
-        # get format version
-        version = None
-        metadata = data.iterfind("./um:metadata/*")
-        for entry in metadata:
-            tag_name = entry.tag
-            if tag_name == "version":
-                try:
-                    version = int(entry.text)
-                except Exception as e:
-                    raise ValueError("Invalid version string '%s': %s" % (entry.text, e))
-                break
-        if version is None:
-            raise RuntimeError("Missing version in metadata")
-
-        # get setting version
-        if "version" in data.attrib:
-            setting_version = self._xmlVersionToSettingVersion(data.attrib["version"])
-        else:
-            setting_version = self._xmlVersionToSettingVersion("1.2")
-
-        if version is None:
-            raise RuntimeError("Missing version in metadata")
-
-        return version * 1000000 + setting_version
-
-    def _xmlVersionToSettingVersion(self, xml_version: str) -> int:
-        if xml_version == "1.3":
-            return 1
-        return 0 #Older than 1.3.
-
-    def upgradeMaterial(self, serialised, filename):
-        data = ET.fromstring(serialised)
-
-        # update version
-        metadata = data.iterfind("./um:metadata/*", {"um": "http://www.ultimaker.com/material"})
-        for entry in metadata:
-            if _tag_without_namespace(entry) == "version":
-                entry.text = "2"
-                break
-
-        data.attrib["version"] = "1.3"
-
-        # this makes sure that the XML header states encoding="utf-8"
-        new_serialised = ET.tostring(data, encoding="utf-8").decode("utf-8")
-
-        return [filename], [new_serialised]
-
-
-def _tag_without_namespace(element):
-    return element.tag[element.tag.rfind("}") + 1:]
+# Copyright (c) 2017 Ultimaker B.V.
+# Cura is released under the terms of the AGPLv3 or higher.
+
+import xml.etree.ElementTree as ET
+
+from UM.VersionUpgrade import VersionUpgrade
+
+
+class XmlMaterialUpgrader(VersionUpgrade):
+    def getXmlVersion(self, serialized):
+        data = ET.fromstring(serialized)
+
+        # get format version
+        version = None
+        metadata = data.iterfind("./um:metadata/*")
+        for entry in metadata:
+            tag_name = entry.tag
+            if tag_name == "version":
+                try:
+                    version = int(entry.text)
+                except Exception as e:
+                    raise ValueError("Invalid version string '%s': %s" % (entry.text, e))
+                break
+        if version is None:
+            raise RuntimeError("Missing version in metadata")
+
+        # get setting version
+        if "version" in data.attrib:
+            setting_version = self._xmlVersionToSettingVersion(data.attrib["version"])
+        else:
+            setting_version = self._xmlVersionToSettingVersion("1.2")
+
+        if version is None:
+            raise RuntimeError("Missing version in metadata")
+
+        return version * 1000000 + setting_version
+
+    def _xmlVersionToSettingVersion(self, xml_version: str) -> int:
+        if xml_version == "1.3":
+            return 1
+        return 0 #Older than 1.3.
+
+    def upgradeMaterial(self, serialised, filename):
+        data = ET.fromstring(serialised)
+
+        # update version
+        metadata = data.iterfind("./um:metadata/*", {"um": "http://www.ultimaker.com/material"})
+        for entry in metadata:
+            if _tag_without_namespace(entry) == "version":
+                entry.text = "2"
+                break
+
+        data.attrib["version"] = "1.3"
+
+        # this makes sure that the XML header states encoding="utf-8"
+        new_serialised = ET.tostring(data, encoding="utf-8").decode("utf-8")
+
+        return [filename], [new_serialised]
+
+
+def _tag_without_namespace(element):
+    return element.tag[element.tag.rfind("}") + 1:]