diff --git a/src/HubCloud.BlazorSheet.EvalEngine/Engine/DependencyAnalyzer/SheetDependencyAnalyzer.cs b/src/HubCloud.BlazorSheet.EvalEngine/Engine/DependencyAnalyzer/SheetDependencyAnalyzer.cs
index 2c66617..d8a23e7 100644
--- a/src/HubCloud.BlazorSheet.EvalEngine/Engine/DependencyAnalyzer/SheetDependencyAnalyzer.cs
+++ b/src/HubCloud.BlazorSheet.EvalEngine/Engine/DependencyAnalyzer/SheetDependencyAnalyzer.cs
@@ -113,9 +113,7 @@ public List<SheetCell> OrderCellsForCalc2()
             return resultList;
         }
 
-        
-        #region private methods
-        private void CheckCircularCells(List<SheetCell> sheetCells)
+        public void CheckCircularCells(List<SheetCell> sheetCells)
         {
             var circularCells = new List<ValueAddress>();
             foreach (var cell in sheetCells)
@@ -140,6 +138,8 @@ private void CheckCircularCells(List<SheetCell> sheetCells)
             }
         }
         
+        #region private methods
+        
         private string GetCircularCellsStr(List<SheetCell> badCells)
         {
             var resultStr = string.Empty;
diff --git a/src/HubCloud.BlazorSheet.EvalEngine/Engine/WorkbookEvaluator.cs b/src/HubCloud.BlazorSheet.EvalEngine/Engine/WorkbookEvaluator.cs
index 15f1c87..8f8972f 100644
--- a/src/HubCloud.BlazorSheet.EvalEngine/Engine/WorkbookEvaluator.cs
+++ b/src/HubCloud.BlazorSheet.EvalEngine/Engine/WorkbookEvaluator.cs
@@ -104,6 +104,8 @@ private void EvalSheet(Sheet sheet, SheetData cells)
             var formulaCells = sheet.Cells
                 .Where(x => IsFormula(x.Formula))
                 .ToList();
+            
+            _analyzer.CheckCircularCells(formulaCells);
 
             // formulas without depend
             var endingFormulas = new List<ValueAddress>();