diff --git a/services/horizon/docker/verify-range/start b/services/horizon/docker/verify-range/start
index bed3f76b24..8da48db6cc 100644
--- a/services/horizon/docker/verify-range/start
+++ b/services/horizon/docker/verify-range/start
@@ -73,7 +73,6 @@ export NETWORK_PASSPHRASE="Public Global Stellar Network ; September 2015"
 export HISTORY_ARCHIVE_URLS="https://s3-eu-west-1.amazonaws.com/history.stellar.org/prd/core-live/core_live_001"
 export DATABASE_URL="postgres://postgres:postgres@localhost:5432/horizon?sslmode=disable"
 export CAPTIVE_CORE_CONFIG_APPEND_PATH="/captive-core-pubnet.cfg"
-export CAPTIVE_CORE_CONFIG_APPEND_PATH="/captive-core-pubnet.cfg"
 export STELLAR_CORE_BINARY_PATH="/usr/bin/stellar-core"
 
 cd stellar-go