diff --git a/builder/test/test_qr.py b/builder/test/test_qr.py
index 4120ceb7..438e18ac 100644
--- a/builder/test/test_qr.py
+++ b/builder/test/test_qr.py
@@ -17,7 +17,7 @@ def image_callback(data):
     cv_image = bridge.imgmsg_to_cv2(data, 'bgr8')  # OpenCV image
     barcodes = pyzbar.decode(cv_image)
     for barcode in barcodes:
-        b_data = barcode.data.encode("utf-8")
+        b_data = barcode.data.decode("utf-8")
         b_type = barcode.type
         (x, y, w, h) = barcode.rect
         xc = x + w/2
diff --git a/docs/en/camera.md b/docs/en/camera.md
index 337e724e..5dfe34fa 100644
--- a/docs/en/camera.md
+++ b/docs/en/camera.md
@@ -133,7 +133,7 @@ def image_callback(data):
     cv_image = bridge.imgmsg_to_cv2(data, 'bgr8')  # OpenCV image
     barcodes = pyzbar.decode(cv_image)
     for barcode in barcodes:
-        b_data = barcode.data.encode("utf-8")
+        b_data = barcode.data.decode("utf-8")
         b_type = barcode.type
         (x, y, w, h) = barcode.rect
         xc = x + w/2
diff --git a/docs/ru/camera.md b/docs/ru/camera.md
index 68441775..522f89ba 100644
--- a/docs/ru/camera.md
+++ b/docs/ru/camera.md
@@ -135,7 +135,7 @@ def image_callback(data):
     cv_image = bridge.imgmsg_to_cv2(data, 'bgr8')  # OpenCV image
     barcodes = pyzbar.decode(cv_image)
     for barcode in barcodes:
-        b_data = barcode.data.encode("utf-8")
+        b_data = barcode.data.decode("utf-8")
         b_type = barcode.type
         (x, y, w, h) = barcode.rect
         xc = x + w/2