diff --git a/src/modules/generator/main_impl.h b/src/modules/generator/main_impl.h
index 28536694..f1cd0779 100644
--- a/src/modules/generator/main_impl.h
+++ b/src/modules/generator/main_impl.h
@@ -24,7 +24,7 @@
     import hashlib
     F = FiniteField (0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F)
     G = '0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8'
-    H = EllipticCurve ([F (0), F (7)]).lift_x(F(int(hashlib.sha256(G.decode('hex')).hexdigest(),16)))
+    H = EllipticCurve ([F (0), F (7)]).lift_x(F(int(hashlib.sha256(bytes.fromhex(G)).hexdigest(),16)))
     print('%x %x' % H.xy())
  */
 static const secp256k1_generator secp256k1_generator_h_internal = {{