diff --git a/src/app/dialogs/tools/dialoglineintersectaxis.cpp b/src/app/dialogs/tools/dialoglineintersectaxis.cpp
index 768536d4b..b30ee2cb4 100644
--- a/src/app/dialogs/tools/dialoglineintersectaxis.cpp
+++ b/src/app/dialogs/tools/dialoglineintersectaxis.cpp
@@ -66,6 +66,14 @@ DialogLineIntersectAxis::DialogLineIntersectAxis(const VContainer *data, const q
     connect(ui->plainTextEditFormula, &QPlainTextEdit::textChanged, this, &DialogLineIntersectAxis::AngleTextChanged);
     connect(ui->pushButtonGrowLengthAngle, &QPushButton::clicked, this, &DialogLineIntersectAxis::DeployAngleTextEdit);
     connect(timerFormula, &QTimer::timeout, this, &DialogLineIntersectAxis::EvalAngle);
+    connect(ui->comboBoxFirstLinePoint,
+            static_cast<void (QComboBox::*)(const QString &)>(&QComboBox::currentIndexChanged),
+            this, &DialogLineIntersectAxis::PointNameChanged);
+    connect(ui->comboBoxSecondLinePoint,
+            static_cast<void (QComboBox::*)(const QString &)>(&QComboBox::currentIndexChanged),
+            this, &DialogLineIntersectAxis::PointNameChanged);
+    connect(ui->comboBoxAxisPoint, static_cast<void (QComboBox::*)(const QString &)>(&QComboBox::currentIndexChanged),
+            this, &DialogLineIntersectAxis::PointNameChanged);
 
     line = new VisToolLineIntersectAxis(data);
 }
@@ -257,6 +265,31 @@ void DialogLineIntersectAxis::DeployAngleTextEdit()
     DeployFormula(ui->plainTextEditFormula, ui->pushButtonGrowLengthAngle, formulaBaseHeightAngle);
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void DialogLineIntersectAxis::PointNameChanged()
+{
+    QSet<quint32> set;
+    set.insert(getCurrentObjectId(ui->comboBoxFirstLinePoint));
+    set.insert(getCurrentObjectId(ui->comboBoxSecondLinePoint));
+    set.insert(getCurrentObjectId(ui->comboBoxAxisPoint));
+
+    QColor color = okColor;
+    if (set.size() != 3)
+    {
+        flagError = false;
+        color = errorColor;
+    }
+    else
+    {
+        flagError = true;
+        color = okColor;
+    }
+    ChangeColor(ui->labelFirstLinePoint, color);
+    ChangeColor(ui->labelSecondLinePoint, color);
+    ChangeColor(ui->labelAxisPoint, color);
+    CheckState();
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogLineIntersectAxis::ShowVisualization()
 {
diff --git a/src/app/dialogs/tools/dialoglineintersectaxis.h b/src/app/dialogs/tools/dialoglineintersectaxis.h
index f4bbbd5e8..cc287c199 100644
--- a/src/app/dialogs/tools/dialoglineintersectaxis.h
+++ b/src/app/dialogs/tools/dialoglineintersectaxis.h
@@ -70,6 +70,7 @@ public slots:
     void         EvalAngle();
     void         AngleTextChanged();
     void         DeployAngleTextEdit();
+    virtual void PointNameChanged();
 protected:
     virtual void ShowVisualization();
     /**
diff --git a/src/app/dialogs/tools/dialoglineintersectaxis.ui b/src/app/dialogs/tools/dialoglineintersectaxis.ui
index 3ef9348a0..6a8ed86f6 100644
--- a/src/app/dialogs/tools/dialoglineintersectaxis.ui
+++ b/src/app/dialogs/tools/dialoglineintersectaxis.ui
@@ -211,7 +211,7 @@
          <item>
           <layout class="QFormLayout" name="formLayout">
            <item row="0" column="0">
-            <widget class="QLabel" name="label_4">
+            <widget class="QLabel" name="labelAxisPoint">
              <property name="sizePolicy">
               <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
                <horstretch>0</horstretch>
@@ -231,7 +231,7 @@
             </widget>
            </item>
            <item row="1" column="0">
-            <widget class="QLabel" name="label_5">
+            <widget class="QLabel" name="labelFirstLinePoint">
              <property name="sizePolicy">
               <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
                <horstretch>0</horstretch>
@@ -251,7 +251,7 @@
             </widget>
            </item>
            <item row="2" column="0">
-            <widget class="QLabel" name="label_6">
+            <widget class="QLabel" name="labelSecondLinePoint">
              <property name="sizePolicy">
               <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
                <horstretch>0</horstretch>