diff --git a/sources/properties/xrefproperties.cpp b/sources/properties/xrefproperties.cpp
index f4116abe7..c92628bed 100644
--- a/sources/properties/xrefproperties.cpp
+++ b/sources/properties/xrefproperties.cpp
@@ -95,10 +95,10 @@ void XRefProperties::fromSettings(const QSettings &settings, const QString prefi
 */
 QDomElement XRefProperties::toXml(QDomDocument &xml_document) const {
 
-    QDomElement xml_element = xml_document.createElement("xref");
-    xml_element.setAttribute("type", m_key);
+	QDomElement xml_element = xml_document.createElement("xref");
+	xml_element.setAttribute("type", m_key);
 
-    xml_element.setAttribute("showpowerctc", m_show_power_ctc? "true" : "false");
+	xml_element.setAttribute("showpowerctc", m_show_power_ctc? "true" : "false");
 	QString display = m_display == Cross? "cross" : "contacts";
 	xml_element.setAttribute("displayhas", display);
 	QString snap = m_snap_to == Bottom? "bottom" : "label";
@@ -119,7 +119,7 @@ QDomElement XRefProperties::toXml(QDomDocument &xml_document) const {
 		xml_element.setAttribute(key + "prefix", m_prefix.value(key));
 	}
 
-    return xml_element;
+	return xml_element;
 }
 
 /**
@@ -149,7 +149,7 @@ bool XRefProperties::fromXml(const QDomElement &xml_element) {
 	foreach (QString key, m_prefix_keys) {
 		m_prefix.insert(key, xml_element.attribute(key + "prefix"));
 	}
-    return true;
+	return true;
 }
 
 /**
diff --git a/sources/properties/xrefproperties.h b/sources/properties/xrefproperties.h
index 9a292c3ec..7762d8f45 100644
--- a/sources/properties/xrefproperties.h
+++ b/sources/properties/xrefproperties.h
@@ -42,8 +42,8 @@ class XRefProperties : public PropertiesInterface
 
 	void toSettings	  (QSettings &settings, const QString = QString()) const override;
 	void fromSettings (const QSettings &settings, const QString = QString()) override;
-    QDomElement toXml		  (QDomDocument &xml_document) const override;
-    bool fromXml(const QDomElement &xml_element) override;
+	QDomElement toXml		  (QDomDocument &xml_document) const override;
+	bool fromXml(const QDomElement &xml_element) override;
 
 	static QHash<QString, XRefProperties> defaultProperties();
 
@@ -73,7 +73,7 @@ class XRefProperties : public PropertiesInterface
 	void setOffset(const int offset) {m_offset = offset;}
 	int offset() const				 {return m_offset;}
 
-    void setKey(QString& key) {m_key = key;}
+	void setKey(QString& key) {m_key = key;}
 
 	private:
 	bool m_show_power_ctc;
@@ -85,7 +85,7 @@ class XRefProperties : public PropertiesInterface
 	QString m_master_label;
 	QString m_slave_label;
 	int     m_offset;
-    QString m_key;
+	QString m_key;
 };
 
 #endif // XREFPROPERTIES_H