1 files changed, 2 insertions, 2 deletions
diff --git a/UVtools.Core/GCode/GCodeBuilder.cs b/UVtools.Core/GCode/GCodeBuilder.cs
index 33b5cc0..211832d 100644
--- a/UVtools.Core/GCode/GCodeBuilder.cs
+++ b/UVtools.Core/GCode/GCodeBuilder.cs
@@ -450,11 +450,11 @@ namespace UVtools.Core.GCode
         public void RebuildGCode(FileFormat slicerFile, StringBuilder header) => RebuildGCode(slicerFile, header?.ToString());
         public void RebuildGCode(FileFormat slicerFile, string header = null)
         {
-            if (slicerFile.LayerCount == 0) return;
             Clear();
-
             AppendUVtools();
 
+            if (slicerFile.LayerCount == 0) return;
+
             if (!string.IsNullOrWhiteSpace(header))
             {
                 Append(header);