Numeric bibliography with missing horizontal margin

[felixriese]

I am using the numeric bibliography style with bibtex (biber shows the same results). There is not enough horizonal margin / space in the bibliography between the numeric label, e.g. [1] and the full citation, e.g. Felix .... How can I modify that?

Screenshot of the bibliography:

setup.tex:

\usepackage[english]{babel} % babel system, adjust the language of the content
\PassOptionsToPackage{% setup clean thesis style
    figuresep=colon,%
    hangfigurecaption=false,%
    hangsection=true,%
    hangsubsection=true,%
    sansserif=false,%
    configurelistings=true,%
    colorize=full,%
    colortheme=bluegreen,%
    configurebiblatex=true,%
    bibsys=bibtex,%
    bibfile=bibliography,%
    bibstyle=numeric,%
    bibsorting=none,%
}{cleanthesis}
\usepackage{cleanthesis}

\hypersetup{% setup the hyperref-package options
    pdftitle={\thesisTitle},    %   - title (PDF meta)
    pdfsubject={\thesisSubject},%   - subject (PDF meta)
    pdfauthor={\thesisName},    %   - author (PDF meta)
    plainpages=false,           %   -
    colorlinks=false,           %   - colorize links?
    pdfborder={0 0 0},          %   -
    breaklinks=true,            %   - allow line break inside links
    bookmarksnumbered=true,     %
    bookmarksopen=true          %
}

[felixriese]

Solved it, maybe that was obvious to others. In the main tex file, change the line

\setlength{\biblabelsep}{0pt}

to

\setlength{\biblabelsep}{10pt}