diff --git a/src/backend/worksheet/plots/cartesian/XYAnalysisCurvePrivate.h b/src/backend/worksheet/plots/cartesian/XYAnalysisCurvePrivate.h
index 2f2f72f9f..bd6f0d236 100644
--- a/src/backend/worksheet/plots/cartesian/XYAnalysisCurvePrivate.h
+++ b/src/backend/worksheet/plots/cartesian/XYAnalysisCurvePrivate.h
@@ -1,58 +1,58 @@
 /***************************************************************************
     File                 : XYAnalysisCurvePrivate.h
     Project              : LabPlot
     Description          : Private members of XYAnalysisCurve
     --------------------------------------------------------------------
     Copyright            : (C) 2017 Alexander Semke (alexander.semke@web.de)
 
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *  This program is free software; you can redistribute it and/or modify   *
  *  it under the terms of the GNU General Public License as published by   *
  *  the Free Software Foundation; either version 2 of the License, or      *
  *  (at your option) any later version.                                    *
  *                                                                         *
  *  This program is distributed in the hope that it will be useful,        *
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  *  GNU General Public License for more details.                           *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the Free Software           *
  *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
  *   Boston, MA  02110-1301  USA                                           *
  *                                                                         *
  ***************************************************************************/
 
 #ifndef XYANALYSISPRIVATE_H
-#define XYANALYSISRIVATE_H
+#define XYANALYSISPRIVATE_H
 
 #include "backend/worksheet/plots/cartesian/XYCurvePrivate.h"
 
 class XYAnalysisCurve;
 class Column;
 
 class XYAnalysisCurvePrivate : public XYCurvePrivate {
 public:
 	explicit XYAnalysisCurvePrivate(XYAnalysisCurve*);
 	~XYAnalysisCurvePrivate() override;
 
 	XYAnalysisCurve::DataSourceType dataSourceType;
 	const XYCurve* dataSourceCurve;
 
 	const AbstractColumn* xDataColumn; //<! column storing the values for the input x-data for the analysis function
 	const AbstractColumn* yDataColumn; //<! column storing the values for the input y-data for the analysis function
 	QString xDataColumnPath;
 	QString yDataColumnPath;
 
 	Column* xColumn; //<! column used internally for storing the x-values of the result analysis curve
 	Column* yColumn; //<! column used internally for storing the y-values of the result analysis curve
 	QVector<double>* xVector;
 	QVector<double>* yVector;
 
 	XYAnalysisCurve* const q;
 };
 
 #endif