How to correct the indentation of line numbers of algorithm2e package when used with beamer class?

Question

When using the algorithm2e package with the beamer class I get a different indentation for the line numberings than when using it with other classes.

With beamer class they look like this:

\documentclass{beamer}
\usepackage[ruled,linesnumbered]{algorithm2e}
\begin{document}
    \frame{
        \begin{algorithm}[H]
            \caption{My algorithm}
            \While{something holds}{
                calculate something
            }
            output something
        \end{algorithm}
    }
\end{document}

But I would like to have them like this:

\documentclass{article}
\usepackage[ruled,linesnumbered]{algorithm2e}
\begin{document}
        \begin{algorithm}[H]
            \caption{My algorithm}
            \While{something holds}{
                calculate something
            }
            output something
        \end{algorithm}
\end{document}

Any idea would be appreciated. Thank you very much in advance.

Because the problem is so simple I was surprised that after nearly half an hour searching I could not find this question already asked somewhere else. I apologize if this is the case.

Answer 1

Def in algorithm2e:

\IncMargin{length} increases the size of the \algomargin by the length given in argument.

\DecMargin{length} decreases the size of the \algomargin by the length given in argument.

\SetAlCapHSkip{length} sets the horizontal skip before Algorithm: in caption when used in ruled algorithm.

\documentclass{beamer}
\usepackage[ruled,linesnumbered]{algorithm2e}
\begin{document}
    \frame{
    text test!
    \IncMargin{1.5em}
        \begin{algorithm}[H]
        \SetAlCapHSkip{.7em}
            \caption{My algorithm}
            \While{something holds}{
                calculate something
            }
            output something
        \end{algorithm}
        \DecMargin{1.5em}
    text test!
    }
\end{document}

output: