diff --git a/primitives/src/circuit/rescue/mod.rs b/primitives/src/circuit/rescue/mod.rs
index 58e29007a..29b21f169 100644
--- a/primitives/src/circuit/rescue/mod.rs
+++ b/primitives/src/circuit/rescue/mod.rs
@@ -18,9 +18,8 @@ pub use non_native::RescueNonNativeStateVar;
 
 use crate::rescue::{RescueMatrix, RescueVector, PRP};
 
-/// Generic ResuceStateVar. Both RescueStateVar and RescueNonNativeStateVar
-/// should implement it.
-pub trait RescueStateVarGen<T, F> {
+/// Variable to represent the state of the sponge.
+pub trait SpongeStateVar<T, F> {
     /// The native field.
     type Native;
     /// Non-native field.
@@ -32,7 +31,7 @@ pub trait RescueStateVarGen<T, F> {
 /// Trait for rescue circuit over native field.
 pub trait RescueGadget<R, T, F>
 where
-    R: RescueStateVarGen<T, F>,
+    R: SpongeStateVar<T, F>,
 {
     /// Given an input state st_0 and an output state st_1, ensure that st_1 =
     /// rescue_permutation(st_0)  where rescue_permutation is the instance
@@ -115,7 +114,7 @@ where
 
 pub(crate) trait PermutationGadget<R, T, F>: Circuit<F>
 where
-    R: RescueStateVarGen<T, F>,
+    R: SpongeStateVar<T, F>,
     F: PrimeField,
 {
     fn check_var_bound_rescue_state(&self, rescue_state: &R) -> Result<(), CircuitError>;
diff --git a/primitives/src/circuit/rescue/native.rs b/primitives/src/circuit/rescue/native.rs
index dc3fd6d90..d731c3ff8 100644
--- a/primitives/src/circuit/rescue/native.rs
+++ b/primitives/src/circuit/rescue/native.rs
@@ -18,14 +18,14 @@ use jf_relation::{
 };
 use jf_utils::compute_len_to_next_multiple;
 
-use super::{PermutationGadget, RescueGadget, RescueStateVarGen};
+use super::{PermutationGadget, RescueGadget, SpongeStateVar};
 
 #[derive(Clone, Debug)]
 /// Array of variables representing a Rescue state (4 field elements).
 pub struct RescueStateVar(pub(crate) [Variable; STATE_SIZE]);
 
 /// For the native field, there is only really one field `F`.
-impl<F> RescueStateVarGen<F, F> for RescueStateVar {
+impl<F> SpongeStateVar<F, F> for RescueStateVar {
     type Native = F;
     type NonNative = F;
     type Var = Variable;
diff --git a/primitives/src/circuit/rescue/non_native.rs b/primitives/src/circuit/rescue/non_native.rs
index 8015bdd05..dfa5bb4f7 100644
--- a/primitives/src/circuit/rescue/non_native.rs
+++ b/primitives/src/circuit/rescue/non_native.rs
@@ -22,7 +22,7 @@ use jf_relation::{
 };
 use jf_utils::{compute_len_to_next_multiple, field_switching};
 
-use super::{PermutationGadget, RescueGadget, RescueStateVarGen};
+use super::{PermutationGadget, RescueGadget, SpongeStateVar};
 
 /// Array of variables representing a Rescue state (4 field elements), and also
 /// the modulus of the non-native evaluating field.
@@ -32,7 +32,7 @@ pub struct RescueNonNativeStateVar<F: PrimeField> {
     pub(crate) modulus: FpElem<F>,
 }
 
-impl<T, F: PrimeField> RescueStateVarGen<T, F> for RescueNonNativeStateVar<F> {
+impl<T, F: PrimeField> SpongeStateVar<T, F> for RescueNonNativeStateVar<F> {
     type Native = T;
     type NonNative = F;
     type Var = FpElemVar<F>;