diff --git a/src/plonk/circuit.rs b/src/plonk/circuit.rs
index c7ff23a8..808277ec 100644
--- a/src/plonk/circuit.rs
+++ b/src/plonk/circuit.rs
@@ -190,7 +190,7 @@ impl Selector {
 }
 
 /// A permutation.
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct Permutation {
     /// The index of this permutation.
     index: usize,