diff --git a/plugins/diopser/src/lib.rs b/plugins/diopser/src/lib.rs
index 137dab70..988b8eae 100644
--- a/plugins/diopser/src/lib.rs
+++ b/plugins/diopser/src/lib.rs
@@ -16,6 +16,9 @@
 
 #![cfg_attr(feature = "simd", feature(portable_simd))]
 
+#[macro_use]
+extern crate nih_plug;
+
 use nih_plug::prelude::*;
 use std::pin::Pin;
 use std::sync::atomic::{AtomicBool, Ordering};