diff --git a/src/engine/common.md b/src/engine/common.md
index 735f8d9e0..8402516f7 100644
--- a/src/engine/common.md
+++ b/src/engine/common.md
@@ -44,6 +44,11 @@ the client **MUST** also expose the following subset of `eth` methods:
 * `eth_sendRawTransaction`
 * `eth_syncing`
 
+To facilitate a more accurate measurement of execution layer client diversity statistics, the client **SHOULD** also expose
+the following `web3` method:
+
+* `web3_clientVersion`
+
 These methods are described in [Ethereum JSON-RPC Specification][json-rpc-spec].
 
 ### Authentication