diff --git a/TestSuite/nested_lambdas_10.pas b/TestSuite/nested_lambdas_10.pas
new file mode 100644
index 000000000..d211fbd7d
--- /dev/null
+++ b/TestSuite/nested_lambdas_10.pas
@@ -0,0 +1,7 @@
+begin
+  var l := Range(2,1000).Where(x->Range(2,Round(sqrt(x))).All(i->x mod i <> 0)).ToList();
+  assert(l.Count = 168);
+  assert(l.Contains(3));
+  assert(l.Contains(7));
+  assert(l.Contains(11));
+end.
\ No newline at end of file
diff --git a/TreeConverter/LambdaExpressions/Closure/CapturedVariablesSubstitutionClassGenerator.cs b/TreeConverter/LambdaExpressions/Closure/CapturedVariablesSubstitutionClassGenerator.cs
index d05474013..814421da5 100644
--- a/TreeConverter/LambdaExpressions/Closure/CapturedVariablesSubstitutionClassGenerator.cs
+++ b/TreeConverter/LambdaExpressions/Closure/CapturedVariablesSubstitutionClassGenerator.cs
@@ -573,7 +573,21 @@ private void AddReferencesToIdentInLambda(type_declaration upperScopeWhereVarsAr
                         dot_node substDotNode1;
                         if (!nestedLambda)
                         {
-                            substDotNode1 = new dot_node(new ident(_capturedVarsClassDefs[scopeAsLambda.ScopeIndexOfClassWhereLambdaWillBeAddedAsMethod.Value].GeneratedUpperClassFieldName), new ident(varName));
+                            var parts = new Stack<ident>();
+                            var dn = substDotNode;
+                            parts.Push((ident)dn.right);
+
+                            while (!(dn.left is ident && dn.right is ident))
+                            {
+                                dn = (dot_node)dn.left;
+                                parts.Push((ident)dn.right);
+                            }
+
+                            substDotNode1 = new dot_node(new ident(_capturedVarsClassDefs[scopeAsLambda.ScopeIndexOfClassWhereLambdaWillBeAddedAsMethod.Value].GeneratedUpperClassFieldName), parts.Pop());
+                            while (parts.Count > 0)
+                            {
+                                substDotNode1 = new dot_node(substDotNode1, parts.Pop());
+                            }
                         }
                         else
                         {
@@ -593,7 +607,7 @@ private void AddReferencesToIdentInLambda(type_declaration upperScopeWhereVarsAr
                             
                             while (parts.Count > 0)
                             {
-                                substDotNode1 = new dot_node(substDotNode, parts.Pop());    
+                                substDotNode1 = new dot_node(substDotNode1, parts.Pop());    
                             }
                         }
 
diff --git a/TreeConverter/LambdaExpressions/Closure/CapturedVariablesTreeBuilder.cs b/TreeConverter/LambdaExpressions/Closure/CapturedVariablesTreeBuilder.cs
index 2419aa7ca..daf0bdec3 100644
--- a/TreeConverter/LambdaExpressions/Closure/CapturedVariablesTreeBuilder.cs
+++ b/TreeConverter/LambdaExpressions/Closure/CapturedVariablesTreeBuilder.cs
@@ -551,6 +551,28 @@ public override void visit(PascalABCCompiler.SyntaxTree.for_node _for_node)
 
         public override void visit(function_lambda_definition lambdaDefinition)
         {   
+            if (lambdaDefinition.formal_parameters != null && lambdaDefinition.formal_parameters.params_list != null && lambdaDefinition.formal_parameters.params_list.Count != 0)
+            {
+                var varDefsList = new List<statement>();
+                for (var i = 0; i < lambdaDefinition.formal_parameters.params_list.Count; i++)
+                {
+                    var varType = lambdaDefinition.formal_parameters.params_list[i].vars_type is lambda_inferred_type ?
+                        LambdaHelper.ConvertSemanticTypeToSyntaxType((type_node)((lambda_inferred_type)lambdaDefinition.formal_parameters.params_list[i].vars_type).real_type) :
+                        lambdaDefinition.formal_parameters.params_list[i].vars_type;
+                    
+                    for (var j = 0; j < lambdaDefinition.formal_parameters.params_list[i].idents.idents.Count; j++)
+                    {
+                        var varName = "<>" + lambdaDefinition.formal_parameters.params_list[i].idents.idents[j].name;
+                        var vds = new var_def_statement(new ident(lambdaDefinition.formal_parameters.params_list[i].idents.idents[j].name), varType);
+                        vds.inital_value = new ident(varName);
+                        lambdaDefinition.formal_parameters.params_list[i].idents.idents[j].name = varName;
+                        varDefsList.Add(new var_statement(vds));
+                    }
+                }
+
+                ((statement_list)lambdaDefinition.proc_body).subnodes.InsertRange(0, varDefsList);
+            }
+
             var procDecl = LambdaHelper.ConvertLambdaNodeToProcDefNode(lambdaDefinition);
             _visitor.body_exists = true;
             _visitor.hard_node_test_and_visit(procDecl.proc_header);