diff --git a/openbr/plugins/imgproc/fillcontours.cpp b/openbr/plugins/imgproc/fillcontours.cpp
index aa3036b..4236c3c 100644
--- a/openbr/plugins/imgproc/fillcontours.cpp
+++ b/openbr/plugins/imgproc/fillcontours.cpp
@@ -33,9 +33,9 @@ class FillContoursTransform : public UntrainableTransform
     Q_OBJECT
 
     Q_PROPERTY(float epsilon READ get_epsilon WRITE set_epsilon RESET reset_epsilon STORED false)
-    Q_PROPERTY(float minSize READ get_minSize WRITE set_minSize RESET reset_minSize STORED false)
-    BR_PROPERTY(float, epsilon, 3)
-    BR_PROPERTY(int, minSize, 40)
+    Q_PROPERTY(size_t minSize READ get_minSize WRITE set_minSize RESET reset_minSize STORED false)
+    BR_PROPERTY(float, epsilon, 0)
+    BR_PROPERTY(size_t, minSize, 40)
 
     void project(const Template &src, Template &dst) const
     {
@@ -47,7 +47,7 @@ class FillContoursTransform : public UntrainableTransform
         /// Find contours
         findContours(src.m(), contours, hierarchy, CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, Point(0, 0));
 
-        if (smooth)
+        if (epsilon > 0)
             for(size_t i=0; i<contours.size(); i++)
                 approxPolyDP(Mat(contours[i]), contours[i], epsilon, true);