diff --git a/plugins/diopser/src/editor.rs b/plugins/diopser/src/editor.rs
index 49874bbf..02f9f550 100644
--- a/plugins/diopser/src/editor.rs
+++ b/plugins/diopser/src/editor.rs
@@ -20,9 +20,10 @@ use nih_plug_vizia::vizia::prelude::*;
 use nih_plug_vizia::widgets::*;
 use nih_plug_vizia::{assets, create_vizia_editor, ViziaState, ViziaTheming};
 use std::sync::atomic::AtomicBool;
-use std::sync::Arc;
+use std::sync::{Arc, Mutex};
 
 use self::button::SafeModeButton;
+use crate::spectrum::SpectrumOutput;
 use crate::{Diopser, DiopserParams};
 
 mod button;
@@ -40,6 +41,7 @@ const DARKER_GRAY: Color = Color::rgb(0x69, 0x69, 0x69);
 struct Data {
     params: Arc<DiopserParams>,
 
+    spectrum: Arc<Mutex<SpectrumOutput>>,
     /// Whether the safe mode button is enabled. The number of filter stages is capped at 40 while
     /// this is active.
     /// TODO: Actually hook up safe mode
@@ -55,6 +57,7 @@ pub(crate) fn default_state() -> Arc<ViziaState> {
 
 pub(crate) fn create(
     params: Arc<DiopserParams>,
+    spectrum: Arc<Mutex<SpectrumOutput>>,
     editor_state: Arc<ViziaState>,
 ) -> Option<Box<dyn Editor>> {
     create_vizia_editor(editor_state, ViziaTheming::Custom, move |cx, _| {
@@ -66,6 +69,7 @@ pub(crate) fn create(
         Data {
             params: params.clone(),
 
+            spectrum: spectrum.clone(),
             safe_mode: params.safe_mode.clone(),
         }
         .build(cx);
diff --git a/plugins/diopser/src/lib.rs b/plugins/diopser/src/lib.rs
index d4e92dba..67a1d624 100644
--- a/plugins/diopser/src/lib.rs
+++ b/plugins/diopser/src/lib.rs
@@ -24,7 +24,7 @@ use nih_plug::prelude::*;
 use nih_plug_vizia::ViziaState;
 use std::simd::f32x2;
 use std::sync::atomic::{AtomicBool, Ordering};
-use std::sync::Arc;
+use std::sync::{Arc, Mutex};
 
 use crate::spectrum::{SpectrumInput, SpectrumOutput};
 
@@ -78,7 +78,7 @@ pub struct Diopser {
     /// When the GUI is open we compute the spectrum on the audio thread and send it to the GUI.
     spectrum_input: SpectrumInput,
     /// This can be cloned and moved into the editor.
-    spectrum_output: Arc<SpectrumOutput>,
+    spectrum_output: Arc<Mutex<SpectrumOutput>>,
 }
 
 #[derive(Params)]
@@ -158,7 +158,7 @@ impl Default for Diopser {
             next_filter_smoothing_in: 1,
 
             spectrum_input,
-            spectrum_output: Arc::new(spectrum_output),
+            spectrum_output: Arc::new(Mutex::new(spectrum_output)),
         }
     }
 }
@@ -298,7 +298,11 @@ impl Plugin for Diopser {
     }
 
     fn editor(&self, _async_executor: AsyncExecutor<Self>) -> Option<Box<dyn Editor>> {
-        editor::create(self.params.clone(), self.params.editor_state.clone())
+        editor::create(
+            self.params.clone(),
+            self.spectrum_output.clone(),
+            self.params.editor_state.clone(),
+        )
     }
 
     fn accepts_bus_config(&self, config: &BusConfig) -> bool {