Luo and Devetak form an entanglement distillation protocol that has entanglement assistance from a few noiseless ebits. The crucial assumption for an entanglement-assisted entanglement distillation protocol is that Alice and Bob possess c noiseless ebits in addition to their n noisy ebits. The total state of the noisy and noiseless ebits is ( I A ⊗ ⊗ ( A ⊗ ⊗ I ) B ) | Φ Φ n + c + ⟩ where I A is the 2 n + c × × 2 n + c identity matrix acting on Alice's qubits and the noisy Pauli operator ( A ⊗ ⊗ I ) B affects Bob's first n qubits only. Thus the last c ebits are noiseless, and Alice and Bob have to correct for errors on the first n ebits only.