diff --git a/openbr/plugins/imgproc/crop.cpp b/openbr/plugins/imgproc/crop.cpp
index 8dcd136..9c17c7b 100644
--- a/openbr/plugins/imgproc/crop.cpp
+++ b/openbr/plugins/imgproc/crop.cpp
@@ -40,7 +40,7 @@ class CropTransform : public UntrainableTransform
 
     void project(const Template &src, Template &dst) const
     {
-        dst = Mat(src, Rect(x, y, width < 1 ? src.m().cols-x-abs(width) : width, height < 1 ? src.m().rows-y-abs(height) : height));
+        dst = Mat(src, Rect(x, y, width < 1 ? src.m().cols-x-abs(width) : width, height < 1 ? src.m().rows-y-abs(height) : height)).clone();
     }
 };