diff --git a/Greenshot/Drawing/Surface.cs b/Greenshot/Drawing/Surface.cs
index 4606cff75..7dc958475 100644
--- a/Greenshot/Drawing/Surface.cs
+++ b/Greenshot/Drawing/Surface.cs
@@ -1348,6 +1348,7 @@ namespace Greenshot.Drawing {
 						ApplyCrop(cropContainer.Bounds);
 					}
 					cropContainer.Dispose();
+					cropContainer = null;
 				}
 			}
 		}