diff --git a/bin/reth/src/commands/p2p/mod.rs b/bin/reth/src/commands/p2p/mod.rs
index 2de5a9aa5..b40207c80 100644
--- a/bin/reth/src/commands/p2p/mod.rs
+++ b/bin/reth/src/commands/p2p/mod.rs
@@ -3,7 +3,7 @@
 use crate::{
     args::{
         get_secret_key,
-        utils::{chain_help, chain_spec_value_parser, hash_or_num_value_parser, SUPPORTED_CHAINS},
+        utils::{chain_help, genesis_value_parser, hash_or_num_value_parser, SUPPORTED_CHAINS},
         DatabaseArgs, DiscoveryArgs, NetworkArgs,
     },
     utils::get_single_header,
@@ -40,7 +40,7 @@ pub struct Command {
         value_name = "CHAIN_OR_PATH",
         long_help = chain_help(),
         default_value = SUPPORTED_CHAINS[0],
-        value_parser = chain_spec_value_parser
+        value_parser = genesis_value_parser
     )]
     chain: Arc<ChainSpec>,
 
diff --git a/crates/node-core/src/args/utils.rs b/crates/node-core/src/args/utils.rs
index 38c0b01b6..784a3f818 100644
--- a/crates/node-core/src/args/utils.rs
+++ b/crates/node-core/src/args/utils.rs
@@ -32,35 +32,6 @@ pub fn parse_duration_from_secs(arg: &str) -> eyre::Result<Duration, std::num::P
     Ok(Duration::from_secs(seconds))
 }
 
-/// Clap value parser for [`ChainSpec`]s that takes either a built-in chainspec or the path
-/// to a custom one.
-pub fn chain_spec_value_parser(s: &str) -> eyre::Result<Arc<ChainSpec>, eyre::Error> {
-    Ok(match s {
-        #[cfg(not(feature = "optimism"))]
-        "mainnet" => MAINNET.clone(),
-        #[cfg(not(feature = "optimism"))]
-        "goerli" => GOERLI.clone(),
-        #[cfg(not(feature = "optimism"))]
-        "sepolia" => SEPOLIA.clone(),
-        #[cfg(not(feature = "optimism"))]
-        "holesky" => HOLESKY.clone(),
-        #[cfg(not(feature = "optimism"))]
-        "dev" => DEV.clone(),
-        #[cfg(feature = "optimism")]
-        "optimism" => OP_MAINNET.clone(),
-        #[cfg(feature = "optimism")]
-        "optimism_sepolia" | "optimism-sepolia" => OP_SEPOLIA.clone(),
-        #[cfg(feature = "optimism")]
-        "base" => BASE_MAINNET.clone(),
-        #[cfg(feature = "optimism")]
-        "base_sepolia" | "base-sepolia" => BASE_SEPOLIA.clone(),
-        _ => {
-            let raw = fs::read_to_string(PathBuf::from(shellexpand::full(s)?.into_owned()))?;
-            serde_json::from_str(&raw)?
-        }
-    })
-}
-
 /// The help info for the --chain flag
 pub fn chain_help() -> String {
     format!("The chain this node is running.\nPossible values are either a built-in chain or the path to a chain specification file.\n\nBuilt-in chains:\n    {}", SUPPORTED_CHAINS.join(", "))
@@ -178,7 +149,6 @@ mod tests {
     #[test]
     fn parse_known_chain_spec() {
         for chain in SUPPORTED_CHAINS {
-            chain_spec_value_parser(chain).unwrap();
             genesis_value_parser(chain).unwrap();
         }
     }