diff --git a/uppsrc/TCore/CalcNode.cpp b/uppsrc/TCore/CalcNode.cpp
index 42fd30b70..3a23211f4 100644
--- a/uppsrc/TCore/CalcNode.cpp
+++ b/uppsrc/TCore/CalcNode.cpp
@@ -10,6 +10,9 @@ NAMESPACE_UPP
 String CalcType<const CalcNode *>::Describe() { return "lambda-výraz"; }
 RegisterStdCalcTypeName(const CalcNode *)
 
+String CalcType<CalcNodePtr>::Describe() { return t_("lambda-expression"); }
+RegisterStdCalcTypeName(CalcNodePtr)
+
 int CharFilterCalcIdent(int c)      { return IsIdent(c) ? c : 0; }
 int CharFilterCalcUpperIdent(int c) { return IsIdent(c) ? ToUpper(c) : 0; }
 
diff --git a/uppsrc/TCore/CalcNode.h b/uppsrc/TCore/CalcNode.h
index 02139d4dc..340bce639 100644
--- a/uppsrc/TCore/CalcNode.h
+++ b/uppsrc/TCore/CalcNode.h
@@ -395,6 +395,14 @@ struct CalcType<const CalcNode *> : public CalcRawType<const CalcNode *>
 	static String          Describe();
 };
 
+template <>
+struct CalcType<CalcNodePtr> : public CalcRawType<CalcNodePtr>
+{
+	static Value           ToValue(CalcNodePtr cn)     { return !!cn ? RawToValue(cn) : Value(); }
+	static CalcNodePtr     ValueTo(Value v)            { return IsTypeRaw<CalcNodePtr>(v) ? UPP::ValueTo<CalcNodePtr>(v) : NULL; }
+	static String          Describe();
+};
+
 class CalcParser
 {
 public:
diff --git a/uppsrc/TCore/CalcType.cpp b/uppsrc/TCore/CalcType.cpp
index 68312cd34..f141ede56 100644
--- a/uppsrc/TCore/CalcType.cpp
+++ b/uppsrc/TCore/CalcType.cpp
@@ -3,16 +3,16 @@
 
 NAMESPACE_UPP
 
-String CalcTypeDescribeInt()            { return t_("integer"); }
+String CalcTypeDescribeInt()             { return t_("integer"); }
 
-String CalcType<double>::Describe()     { return t_("real number"); }
-String CalcType<String>::Describe()     { return t_("string"); }
-String CalcType<Date>::Describe()       { return t_("date"); }
-String CalcType<Time>::Describe()       { return t_("date/time"); }
-String CalcType<bool>::Describe()       { return t_("logical value"); }
-String CalcType<Value>::Describe()      { return t_("any data type"); }
-String CalcType<ValueArray>::Describe() { return t_("array"); }
-String CalcType<Nuller>::Describe()     { return t_("null value"); }
+String CalcType<double>::Describe()      { return t_("real number"); }
+String CalcType<String>::Describe()      { return t_("string"); }
+String CalcType<Date>::Describe()        { return t_("date"); }
+String CalcType<Time>::Describe()        { return t_("date/time"); }
+String CalcType<bool>::Describe()        { return t_("logical value"); }
+String CalcType<Value>::Describe()       { return t_("any data type"); }
+String CalcType<ValueArray>::Describe()  { return t_("array"); }
+String CalcType<Nuller>::Describe()      { return t_("null value"); }
 
 RegisterStdCalcTypeName(double)
 RegisterStdCalcTypeName(String)
@@ -22,7 +22,6 @@ RegisterStdCalcTypeName(Time)
 RegisterStdCalcTypeName(bool)
 RegisterStdCalcTypeName(Value)
 RegisterStdCalcTypeName(ValueArray)
-RegisterStdCalcTypeName(CalcNodePtr)
 
 const char *CalcNanError()
 {