diff --git a/src/app/valentina/xml/vpattern.cpp b/src/app/valentina/xml/vpattern.cpp
index 43c79c857..ffff375a5 100644
--- a/src/app/valentina/xml/vpattern.cpp
+++ b/src/app/valentina/xml/vpattern.cpp
@@ -4151,6 +4151,7 @@ void VPattern::PrepareForParse(const Document &parse)
     else if (parse == Document::LiteParse)
     {
         VContainer::ClearUniqueNames();
+        Q_STATIC_ASSERT_X(static_cast<int>(VarType::Unknown) == 8, "Check that you used all types");
         data->ClearVariables(VarType::Increment);
         data->ClearVariables(VarType::LineAngle);
         data->ClearVariables(VarType::LineLength);
diff --git a/src/libs/vpatterndb/variables/vincrement_p.h b/src/libs/vpatterndb/variables/vincrement_p.h
index 77d78a71e..441a76460 100644
--- a/src/libs/vpatterndb/variables/vincrement_p.h
+++ b/src/libs/vpatterndb/variables/vincrement_p.h
@@ -57,7 +57,17 @@ public:
           formulaOk(ok),
           previewCalculation(false),
           data(*data)
-    {}
+    {
+        // When we create an increment in the dialog it will get neccesary data. Such data must be removed because will
+        // confuse a user. Increment should not know nothing about internal variables.
+        Q_STATIC_ASSERT_X(static_cast<int>(VarType::Unknown) == 8, "Check that you used all types");
+        this->data.ClearVariables(VarType::LineAngle);
+        this->data.ClearVariables(VarType::LineLength);
+        this->data.ClearVariables(VarType::CurveLength);
+        this->data.ClearVariables(VarType::CurveCLength);
+        this->data.ClearVariables(VarType::ArcRadius);
+        this->data.ClearVariables(VarType::CurveAngle);
+    }
 
     VIncrementData(const VIncrementData &incr)
         : QSharedData(incr),
diff --git a/src/libs/vpatterndb/vcontainer.cpp b/src/libs/vpatterndb/vcontainer.cpp
index 1e2820220..749e64e3e 100644
--- a/src/libs/vpatterndb/vcontainer.cpp
+++ b/src/libs/vpatterndb/vcontainer.cpp
@@ -280,6 +280,7 @@ void VContainer::ClearForFullParse()
 
     d->pieces->clear();
     d->piecePaths->clear();
+    Q_STATIC_ASSERT_X(static_cast<int>(VarType::Unknown) == 8, "Check that you used all types");
     ClearVariables(VarType::Increment);
     ClearVariables(VarType::LineAngle);
     ClearVariables(VarType::LineLength);