diff --git a/core/node/run_impl.sh b/core/node/run_impl.sh
index 3e20798cb..8b5a7c433 100755
--- a/core/node/run_impl.sh
+++ b/core/node/run_impl.sh
@@ -15,7 +15,6 @@ export RPC_PORT="${RPC_PORT:-5170}"
 export DISABLE_BASE_CHAIN="${DISABLE_BASE_CHAIN:-false}"
 export RIVER_ENV="local_${RUN_ENV}"
 export POSITIVE_ENTITLEMENT_CACHE_TTL_SECONDS="${POSITIVE_ENTITLEMENT_CACHE_TTL_SECONDS:-5}"
-export BLOCK_TIME_MS=${BLOCK_TIME_MS:-2000}
 export ENABLE_DEBUG_ENDPOINTS=true
 
 [ -z "${BLOCK_TIME_MS+x}" ] && BLOCK_TIME_MS=$(( ${RIVER_BLOCK_TIME:-1} * 1000 ))