diff --git a/evm_arithmetization/src/generation/jumpdest.rs b/evm_arithmetization/src/generation/jumpdest.rs
index 40794f297..564b3712c 100644
--- a/evm_arithmetization/src/generation/jumpdest.rs
+++ b/evm_arithmetization/src/generation/jumpdest.rs
@@ -23,14 +23,14 @@ impl JumpDestTableWitness {
     pub fn insert(&mut self, code_hash: &H256, ctx: usize, offset: usize) {
         self.0
             .entry(*code_hash)
-            .or_insert(ContextJumpDests::default());
+            .or_default();
 
         self.0
             .get_mut(code_hash)
             .unwrap()
             .0
             .entry(ctx)
-            .or_insert(BTreeSet::default());
+            .or_default();
 
         self.0
             .get_mut(code_hash)