diff --git a/eggstrain/src/execution/operators/mod.rs b/eggstrain/src/execution/operators/mod.rs
index e510cba..e32fd60 100644
--- a/eggstrain/src/execution/operators/mod.rs
+++ b/eggstrain/src/execution/operators/mod.rs
@@ -3,6 +3,7 @@ use datafusion::physical_plan::ExecutionPlan;
 use std::sync::Arc;
 use tokio::sync::broadcast::{Receiver, Sender};
 
+pub mod filter;
 pub mod project;
 
 pub trait Operator {