diff --git a/crates/ethereum/cli/src/chainspec.rs b/crates/ethereum/cli/src/chainspec.rs
index 22965868bf..cbbafe490a 100644
--- a/crates/ethereum/cli/src/chainspec.rs
+++ b/crates/ethereum/cli/src/chainspec.rs
@@ -52,6 +52,7 @@ impl ChainSpecParser for EthChainSpecParser {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use reth_chainspec::EthereumHardforks;
 
     #[test]
     fn parse_known_chain_spec() {
@@ -59,4 +60,57 @@ mod tests {
             assert!(<EthChainSpecParser as ChainSpecParser>::parse(chain).is_ok());
         }
     }
+
+    #[test]
+    fn parse_raw_chainspec_hardforks() {
+        let s = r#"{
+  "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+  "uncleHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+  "coinbase": "0x0000000000000000000000000000000000000000",
+  "stateRoot": "0x76f118cb05a8bc558388df9e3b4ad66ae1f17ef656e5308cb8f600717251b509",
+  "transactionsTrie": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+  "receiptTrie": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+  "bloom": "0x000...000",
+  "difficulty": "0x00",
+  "number": "0x00",
+  "gasLimit": "0x016345785d8a0000",
+  "gasUsed": "0x00",
+  "timestamp": "0x01",
+  "extraData": "0x00",
+  "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+  "nonce": "0x0000000000000000",
+  "baseFeePerGas": "0x07",
+  "withdrawalsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+  "blobGasUsed": "0x00",
+  "excessBlobGas": "0x00",
+  "parentBeaconBlockRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
+  "requestsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+  "hash": "0xc20e1a771553139cdc77e6c3d5f64a7165d972d327eee9632c9c7d0fe839ded4",
+  "alloc": {},
+  "config": {
+    "ethash": {},
+    "chainId": 1,
+    "homesteadBlock": 0,
+    "daoForkSupport": true,
+    "eip150Block": 0,
+    "eip155Block": 0,
+    "eip158Block": 0,
+    "byzantiumBlock": 0,
+    "constantinopleBlock": 0,
+    "petersburgBlock": 0,
+    "istanbulBlock": 0,
+    "berlinBlock": 0,
+    "londonBlock": 0,
+    "terminalTotalDifficulty": 0,
+    "shanghaiTime": 0,
+    "cancunTime": 0,
+    "pragueTime": 0
+  }
+}"#;
+
+        let spec = <EthChainSpecParser as ChainSpecParser>::parse(s).unwrap();
+        assert!(spec.hardforks.is_shanghai_active_at_timestamp(0));
+        assert!(spec.hardforks.is_cancun_active_at_timestamp(0));
+        assert!(spec.hardforks.is_prague_active_at_timestamp(0));
+    }
 }