diff --git a/qt-ui/profile/divecartesianaxis.cpp b/qt-ui/profile/divecartesianaxis.cpp
index 358b85ef4..8b7269c35 100644
--- a/qt-ui/profile/divecartesianaxis.cpp
+++ b/qt-ui/profile/divecartesianaxis.cpp
@@ -178,3 +178,8 @@ void DiveCartesianAxis::setColor(const QColor& color)
 	defaultPen.setCosmetic(true);
 	setPen(defaultPen);
 }
+
+QString DepthAxis::textForValue(double value)
+{
+	return get_depth_string(value, false, false);
+}
diff --git a/qt-ui/profile/divecartesianaxis.h b/qt-ui/profile/divecartesianaxis.h
index 1c8170ef4..9b5da4747 100644
--- a/qt-ui/profile/divecartesianaxis.h
+++ b/qt-ui/profile/divecartesianaxis.h
@@ -43,4 +43,9 @@ protected:
 	QColor textColor;
 };
 
+class DepthAxis : public DiveCartesianAxis {
+protected:
+    QString textForValue(double value);
+};
+
 #endif
\ No newline at end of file