diff --git a/openbr/plugins/imgproc/rndaffine.cpp b/openbr/plugins/imgproc/rndaffine.cpp
index 2fb48f3..11b2e97 100644
--- a/openbr/plugins/imgproc/rndaffine.cpp
+++ b/openbr/plugins/imgproc/rndaffine.cpp
@@ -24,6 +24,8 @@ class RndAffineTransform : public UntrainableMetaTransform
     Q_PROPERTY(float scaleFactor READ get_scaleFactor WRITE set_scaleFactor RESET reset_scaleFactor STORED false)
     Q_PROPERTY(int maxAngle READ get_maxAngle WRITE set_maxAngle RESET reset_maxAngle STORED false)
     BR_PROPERTY(int, numAffines, 0)
+    BR_PROPERTY(int, winWidth, 22)
+    BR_PROPERTY(int, winHeight, 22)
     BR_PROPERTY(float, scaleFactor, 1.2)
     BR_PROPERTY(int, maxAngle, 15)