diff --git a/AIParkingApplication/PlateDetector.cs b/AIParkingApplication/PlateDetector.cs
index 0d5e4f2..b252080 100644
--- a/AIParkingApplication/PlateDetector.cs
+++ b/AIParkingApplication/PlateDetector.cs
@@ -23,6 +23,11 @@ namespace AIParkingApplication
             plateCascadeClassifier = new CascadeClassifier(this.plateType == PlateType.Square ? PlateDetectorConstant.SQUARE_PLATE_WEIGHT_FILENAME : PlateDetectorConstant.LONG_PLATE_WEIGHT_FILENAME);
         }
 
+        ~PlateDetector()
+        {
+            plateCascadeClassifier?.Dispose();
+        }
+
         public Mat DetectPlate(Mat frame)
         {
             Rect[] plateRectsDetected = plateCascadeClassifier.DetectMultiScale(frame, scaleFactor, minNeighbors, HaarDetectionType.ScaleImage, minSizePlate, maxSizePlate);