diff --git a/ShareX.ScreenCaptureLib/Shapes/ShapeManagerMenu.cs b/ShareX.ScreenCaptureLib/Shapes/ShapeManagerMenu.cs
index aca1e7632..e82af0583 100644
--- a/ShareX.ScreenCaptureLib/Shapes/ShapeManagerMenu.cs
+++ b/ShareX.ScreenCaptureLib/Shapes/ShapeManagerMenu.cs
@@ -1225,7 +1225,10 @@ private void UpdateMenu()
 
             tsmiArrowHeadsBothSide.Checked = AnnotationOptions.ArrowHeadsBothSide;
 
-            tsbSaveImage.Enabled = !string.IsNullOrEmpty(Form.ImageFilePath) && File.Exists(Form.ImageFilePath);
+            if (tsbSaveImage != null)
+            {
+                tsbSaveImage.Enabled = !string.IsNullOrEmpty(Form.ImageFilePath) && File.Exists(Form.ImageFilePath);
+            }
 
             switch (shapeType)
             {