diff --git a/src/channels.rs b/src/channels.rs
index fffbae8..ab88474 100644
--- a/src/channels.rs
+++ b/src/channels.rs
@@ -98,9 +98,7 @@ impl Channels {
     pub fn get_center(&mut self, channel: usize) -> ElectricPotential {
         match self.channel_state(channel).center {
             CenterPoint::Vref => {
-                let vref = self.read_vref(channel);
-                self.channel_state(channel).vref = vref;
-                vref
+                self.read_vref(channel)
             },
             CenterPoint::Override(center_point) =>
                 ElectricPotential::new::<volt>(center_point.into()),