Paul Lambert is convinced Ciaran Clark and Nathan Baker will learn from their mistakes.
Clark made an error against Man City which led to a winner for the visitors while Baker hit an own-goal in the following match at Reading.
Lambert was impressed with the way the pair shook off the faults and responded in positive fashion.
Asked how convinced he was that they wouldn't make similar mistakes again, he said: "They won't. I trust them. The good thing about those two was the response they gave us.
"They could have capitulated afterwards but they came on really strong.
"Ciaran was excellent in the second half against Man City and Nathan was great the time he was on the pitch after the mistake at Reading.
"I had a word with Nathan just to keep his spirits up because he was playing well and he has been playing well for a few weeks.
"You don't want one mistake to make him feel really bad about himself because he is young.
"I thought his game after that, he grew into it even more so and was excellent.
"But it's not about worrying about our own things. We have to create a problem for QPR. We have to get at them as well."
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