diff --git a/MesETL.App/Services/ProcessContext.cs b/MesETL.App/Services/ProcessContext.cs
index 583dbe4..d9c26be 100644
--- a/MesETL.App/Services/ProcessContext.cs
+++ b/MesETL.App/Services/ProcessContext.cs
@@ -59,17 +59,16 @@ public class ProcessContext
 
     public void AddTableInput(string table, int count)
     {
-        if (!_tableProgress.TryAdd(table, (input: count, output: 0)))
+        _tableProgress.AddOrUpdate(table, (input: count, output: 0), (k, tuple) =>
         {
-            var tuple = _tableProgress[table];
-            tuple.input += count;
-            _tableProgress[table] = tuple;
-        }
+            tuple.output += count;
+            return tuple;
+        });
     }
-    
+
     public void AddTableOutput(string table, int count)
     {
-        _tableProgress.AddOrUpdate(table, (input:0, output:count), (k, tuple) =>
+        _tableProgress.AddOrUpdate(table, (input: 0, output: count), (k, tuple) =>
         {
             tuple.output += count;
             return tuple;