Help needed on Single Staff Polyphony

[Kees Serier]

Hi,

I try to get those notes in one measure, but the appear in 2 measures
The c should be under the bes' and the es should be under the r8.
Can't figure out what I'm doing wrong..

Thanks in advance,

Kees

\version "2.6.5"
<<
  \new Staff
  {
    \time 4/4
    \key es \major
    \clef treble
    \relative{
      {<bes' es g>4 <bes es g> r8 <bes es g>4 <bes es g>8} \\
      {c,2 es}
    }
  }
>>