diff --git a/samples/dnn/mobilenet_ssd_python.py b/samples/dnn/mobilenet_ssd_python.py
index cc11aa4bf6..039c244457 100644
--- a/samples/dnn/mobilenet_ssd_python.py
+++ b/samples/dnn/mobilenet_ssd_python.py
@@ -41,7 +41,7 @@ if __name__ == "__main__":
     while True:
         # Capture frame-by-frame
         ret, frame = cap.read()
-        blob = cv.dnn.blobFromImage(frame, inScaleFactor, (inWidth, inHeight), meanVal, false)
+        blob = cv.dnn.blobFromImage(frame, inScaleFactor, (inWidth, inHeight), meanVal, False)
         net.setInput(blob)
         detections = net.forward()