diff --git a/generators/residual_qr_code_generator/generator.py b/generators/residual_qr_code_generator/generator.py
index 988599b..99b21c5 100644
--- a/generators/residual_qr_code_generator/generator.py
+++ b/generators/residual_qr_code_generator/generator.py
@@ -129,7 +129,7 @@ class ResidualQRCodeGenerator(BasePdfCardGenerator):
             nonlocal box_idx
             box_id = boxes[box_idx].id
 
-            qr = QRCodeImage(f"П{box_id}", size=30 * mm)
+            qr = QRCodeImage(f"К{box_id}", size=30 * mm)
             qr.drawOn(canvas, 0, 30)
 
             box_info = [