Pulseaudio equaliser (module-equalizer-sink) is stuck on float32le

I use Pulseaudio with s16le sample rate format :

/etc/pulse/daemon.conf

default-sample-format = s16le

Which gives me a s16le sink :

pacmd ls

index: 0
    name: <alsa_output.pci-0000_00_1b.0.analog-stereo.monitor>
    driver: <module-alsa-card.c>
    sample spec: s16le 2ch 44100Hz

But when I call module-equalizer-sink :

pacmd load-module load-module module-dbus-protocol

pacmd load-module module-equalizer-sink

It is loaded with float32le sample rate :

pacmd ls

 index: 1
        name: <alsa_output.pci-0000_00_1b.0.analog-stereo.equalizer.monitor>
        driver: <module-equalizer-sink.c>
        sample spec: float32le 2ch 44100Hz

Which I don't want. Does anybody know how to change that ?

Pulseaudio 5 and Debian Sid.