diff --git a/src/libs/vtools/dialogs/tools/dialogpiecepath.cpp b/src/libs/vtools/dialogs/tools/dialogpiecepath.cpp
index 4ba8ed87f..3aade7598 100644
--- a/src/libs/vtools/dialogs/tools/dialogpiecepath.cpp
+++ b/src/libs/vtools/dialogs/tools/dialogpiecepath.cpp
@@ -889,6 +889,12 @@ bool DialogPiecePath::PathIsValid() const
             ui->helpLabel->setText(url);
             return false;
         }
+        else if (not EachPointLabelIsUnique(ui->listWidget))
+        {
+            url += tr("Each point in the path must be unique!");
+            ui->helpLabel->setText(url);
+            return false;
+        }
     }
 
     if (not m_showMode && ui->comboBoxPiece->count() <= 0)
diff --git a/src/libs/vtools/dialogs/tools/dialogtool.cpp b/src/libs/vtools/dialogs/tools/dialogtool.cpp
index 25d4b5348..6783fb793 100644
--- a/src/libs/vtools/dialogs/tools/dialogtool.cpp
+++ b/src/libs/vtools/dialogs/tools/dialogtool.cpp
@@ -522,6 +522,27 @@ bool DialogTool::DoublePoints(QListWidget *listWidget)
     return false;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+bool DialogTool::EachPointLabelIsUnique(QListWidget *listWidget)
+{
+    SCASSERT(listWidget != nullptr);
+    QSet<quint32> pointLabels;
+    int countPoints = 0;
+    for (int i=0; i < listWidget->count(); ++i)
+    {
+        const QListWidgetItem *rowItem = listWidget->item(i);
+        SCASSERT(rowItem != nullptr);
+        const VPieceNode rowNode = qvariant_cast<VPieceNode>(rowItem->data(Qt::UserRole));
+        if (rowNode.GetTypeTool() == Tool::NodePoint)
+        {
+            ++countPoints;
+            pointLabels.insert(rowNode.GetId());
+        }
+    }
+
+    return countPoints == pointLabels.size();
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 QString DialogTool::DialogWarningIcon()
 {
diff --git a/src/libs/vtools/dialogs/tools/dialogtool.h b/src/libs/vtools/dialogs/tools/dialogtool.h
index a60ca0fff..4dd5f124b 100644
--- a/src/libs/vtools/dialogs/tools/dialogtool.h
+++ b/src/libs/vtools/dialogs/tools/dialogtool.h
@@ -270,6 +270,7 @@ protected:
     static int       FindNotExcludedNodeUp(QListWidget *listWidget, int candidate);
     static bool      FirstPointEqualLast(QListWidget *listWidget);
     static bool      DoublePoints(QListWidget *listWidget);
+    static bool      EachPointLabelIsUnique(QListWidget *listWidget);
     static QString   DialogWarningIcon();
     static QFont     NodeFont(bool nodeExcluded);
 
diff --git a/src/libs/vtools/dialogs/tools/piece/dialogseamallowance.cpp b/src/libs/vtools/dialogs/tools/piece/dialogseamallowance.cpp
index b1060eb01..1a14450f3 100644
--- a/src/libs/vtools/dialogs/tools/piece/dialogseamallowance.cpp
+++ b/src/libs/vtools/dialogs/tools/piece/dialogseamallowance.cpp
@@ -2029,6 +2029,12 @@ bool DialogSeamAllowance::MainPathIsValid() const
             uiTabPaths->helpLabel->setText(url);
             valid = false;
         }
+        else if (not EachPointLabelIsUnique(uiTabPaths->listWidgetMainPath))
+        {
+            url += tr("Each point in the path must be unique!");
+            uiTabPaths->helpLabel->setText(url);
+            valid = false;
+        }
     }
 
     if (valid)