diff --git a/plonky2/src/plonk/circuit_builder.rs b/plonky2/src/plonk/circuit_builder.rs
index 33c88950..58fff814 100644
--- a/plonky2/src/plonk/circuit_builder.rs
+++ b/plonky2/src/plonk/circuit_builder.rs
@@ -16,6 +16,7 @@ use crate::gadgets::arithmetic::BaseArithmeticOperation;
 use crate::gadgets::arithmetic_extension::ExtensionArithmeticOperation;
 use crate::gadgets::arithmetic_u32::U32Target;
 use crate::gadgets::polynomial::PolynomialCoeffsExtTarget;
+use crate::gates::add_many_u32::U32AddManyGate;
 use crate::gates::arithmetic_base::ArithmeticGate;
 use crate::gates::arithmetic_extension::ArithmeticExtensionGate;
 use crate::gates::arithmetic_u32::U32ArithmeticGate;