1 files changed, 1 insertions, 4 deletions
diff --git a/UVtools.Core/Operations/OperationPattern.cs b/UVtools.Core/Operations/OperationPattern.cs
index 432aa95..22398b3 100644
--- a/UVtools.Core/Operations/OperationPattern.cs
+++ b/UVtools.Core/Operations/OperationPattern.cs
@@ -293,10 +293,7 @@ namespace UVtools.Core.Operations
                 //Execute(mat);
                 SlicerFile[layerIndex].LayerMat = dstLayer;
 
-                lock (progress.Mutex)
-                {
-                    progress++;
-                }
+                progress.LockAndIncrement();
             });
 
             SlicerFile.LayerManager.BoundingRectangle = Rectangle.Empty;