I'm currently working on a document where I was using algorithm+algorithmic along with cleveref. With this everything worked perfectly.

Now I had to replace algorithm+algorithmic with algorithm2e. Ever since, I cannot \cref to the label in the algorithm environment. More explicitly, I can refer but \cref doesn't generate a text in front of the number (which is correct) of the algorithm.

I couldn't find any reference to algorithm's packages in the cleveref documentation. Any ideas?

  • In addition to the fix in my answer, I suggest you contact the author of cleveref. He is very responsive to user requests, and will likely add support for algorithm2e if you explain to him what is needed.
    – Lev Bishop
    Jan 28, 2011 at 16:07
  • 3
    For the record, Cleveref versions since 0.17.9 (released in 2011) support algorithm2e "out-of-the-box". Jun 13, 2017 at 17:17
  • 1
    @Dror could you review the accepted answer? I think fixing the load order will be the superior solution in most cases.
    – dreua
    Mar 11, 2021 at 15:29

2 Answers 2


You need to tell cleveref how you want to refer to the algorithms. Something like:

  • This solved my problem. But I have another question. How did you know to choose for the type algocf? Where is it documented? Thanks a lot in any case!
    – Dror
    Jan 28, 2011 at 7:48
  • 4
    From the log-file, without the above commands: LaTeX Warning: cref reference format for label type algocf' undefined on input line 27.`
    – Lev Bishop
    Jan 28, 2011 at 14:36

You only need to load algorithm2e before cleveref.

  • 7
    I think this is the most correct answer Jun 28, 2018 at 11:54
  • 2
    This should be the accepted solution, in my opinion. Aug 4, 2020 at 11:48
  • 1
    still, functions don't work. and remaming algorithm into function doesn't work.
    – caveman
    Jan 11, 2021 at 21:00
  • @caveman This seems to properly answer the question for most people. If you want something else I suggest you ask another question.
    – dreua
    Mar 11, 2021 at 15:32
  • 1
    @dreua - cleveref should almost always be loaded last.
    – Mico
    Mar 11, 2021 at 15:49

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