diff --git a/ground/src/plugins/config/configahrswidget.cpp b/ground/src/plugins/config/configahrswidget.cpp
index 8c8ffd50e..b53095d27 100644
--- a/ground/src/plugins/config/configahrswidget.cpp
+++ b/ground/src/plugins/config/configahrswidget.cpp
@@ -35,7 +35,7 @@
 #include <QtGui/QVBoxLayout>
 #include <QtGui/QPushButton>
 
-
+const double ConfigAHRSWidget::maxVarValue = 0.1;
 
 ConfigAHRSWidget::ConfigAHRSWidget(QWidget *parent) : ConfigTaskWidget(parent)
 {
diff --git a/ground/src/plugins/config/configahrswidget.h b/ground/src/plugins/config/configahrswidget.h
index 04eed5b86..f6744a3a4 100644
--- a/ground/src/plugins/config/configahrswidget.h
+++ b/ground/src/plugins/config/configahrswidget.h
@@ -38,7 +38,6 @@
 #include <QList>
 #include <QTimer>
 
-
 class ConfigAHRSWidget: public ConfigTaskWidget
 {
     Q_OBJECT
@@ -64,7 +63,7 @@ private:
     int phaseCounter;
     int progressBarIndex;
     QTimer progressBarTimer;
-    const static double maxVarValue = 0.1;
+    const static double maxVarValue;
 
 private slots:
     void launchAHRSCalibration();