diff --git a/ropsten-beacon-chain/config.yaml b/ropsten-beacon-chain/config.yaml
index 7afb189..45921ae 100644
--- a/ropsten-beacon-chain/config.yaml
+++ b/ropsten-beacon-chain/config.yaml
@@ -59,6 +59,11 @@ MIN_PER_EPOCH_CHURN_LIMIT: 4
 CHURN_LIMIT_QUOTIENT: 65536
 
 
+# Fork choice
+# ---------------------------------------------------------------
+# 40%
+PROPOSER_SCORE_BOOST: 40
+
 # Deposit contract
 # ---------------------------------------------------------------
 DEPOSIT_CHAIN_ID: 3