diff --git a/crates/optimism/node/src/args.rs b/crates/optimism/node/src/args.rs
index 00a0763e8fd8..658748c9c441 100644
--- a/crates/optimism/node/src/args.rs
+++ b/crates/optimism/node/src/args.rs
@@ -39,11 +39,11 @@ pub struct RollupArgs {
     pub discovery_v4: bool,
 
     /// Configure persistence threshold for engine experimental.
-    #[arg(long = "engine.persistence-threshold", conflicts_with = "legacy", default_value_t = DEFAULT_PERSISTENCE_THRESHOLD)]
+    #[arg(long = "engine.persistence-threshold", default_value_t = DEFAULT_PERSISTENCE_THRESHOLD)]
     pub persistence_threshold: u64,
 
     /// Configure the target number of blocks to keep in memory.
-    #[arg(long = "engine.memory-block-buffer-target", conflicts_with = "legacy", default_value_t = DEFAULT_MEMORY_BLOCK_BUFFER_TARGET)]
+    #[arg(long = "engine.memory-block-buffer-target", default_value_t = DEFAULT_MEMORY_BLOCK_BUFFER_TARGET)]
     pub memory_block_buffer_target: u64,
 }