diff --git a/README.md b/README.md
index cf6df21ca..2e12e03e7 100644
--- a/README.md
+++ b/README.md
@@ -169,10 +169,10 @@ JSON:
 
 docker-compose overrides:
 ```
-      SECOND_RPC_HOST: ""
-      SECOND_RPC_PORT: ""
-      SECOND_RPC_USERNAME: ""
-      SECOND_RPC_PASSWORD: ""
+      SECOND_CORE_RPC_HOST: ""
+      SECOND_CORE_RPC_PORT: ""
+      SECOND_CORE_RPC_USERNAME: ""
+      SECOND_CORE_RPC_PASSWORD: ""
 ```
 
 JSON:
diff --git a/docker/backend/start.sh b/docker/backend/start.sh
index 73556ee20..f982a18e5 100644
--- a/docker/backend/start.sh
+++ b/docker/backend/start.sh
@@ -20,8 +20,8 @@ __MEMPOOL_EXTERNAL_ASSETS__=${MEMPOOL_EXTERNAL_ASSETS:=[]}
 # CORE_RPC
 __CORE_RPC_HOST__=${CORE_RPC_HOST:=127.0.0.1}
 __CORE_RPC_PORT__=${CORE_RPC_PORT:=8332}
-__CORE_RPC_USERNAME__=${CORE_RPC_USER:=mempool}
-__CORE_RPC_PASSWORD__=${CORE_RPC_PASS:=mempool}
+__CORE_RPC_USERNAME__=${CORE_RPC_USERNAME:=mempool}
+__CORE_RPC_PASSWORD__=${CORE_RPC_PASSWORD:=mempool}
 
 # ELECTRUM
 __ELECTRUM_HOST__=${ELECTRUM_HOST:=127.0.0.1}
@@ -32,10 +32,10 @@ __ELECTRUM_TLS_ENABLED__=${ELECTRUM_TLS:=false}
 __ESPLORA_REST_API_URL__=${ESPLORA_REST_API_URL:=http://127.0.0.1:3000}
 
 # SECOND_CORE_RPC
-__SECOND_RPC_HOST__=${SECOND_RPC_HOST:=127.0.0.1}
-__SECOND_RPC_PORT__=${SECOND_RPC_PORT:=8332}
-__SECOND_RPC_USERNAME__=${SECOND_RPC_USERNAME:=mempool}
-__SECOND_RPC_PASSWORD__=${SECOND_RPC_PASSWORD:=mempool}
+__SECOND_CORE_RPC_HOST__=${SECOND_CORE_RPC_HOST:=127.0.0.1}
+__SECOND_CORE_RPC_PORT__=${SECOND_CORE_RPC_PORT:=8332}
+__SECOND_CORE_RPC_USERNAME__=${SECOND_CORE_RPC_USERNAME:=mempool}
+__SECOND_CORE_RPC_PASSWORD__=${SECOND_CORE_RPC_PASSWORD:=mempool}
 
 # DATABASE
 __DATABASE_ENABLED__=${DATABASE_ENABLED:=true}
@@ -80,19 +80,19 @@ sed -i "s/__MEMPOOL_EXTERNAL_ASSETS__/${__MEMPOOL_EXTERNAL_ASSETS__}/g" mempool-
 
 sed -i "s/__CORE_RPC_HOST__/${__CORE_RPC_HOST__}/g" mempool-config.json
 sed -i "s/__CORE_RPC_PORT__/${__CORE_RPC_PORT__}/g" mempool-config.json
-sed -i "s/__CORE_RPC_USERNAME__/${__CORE_RPC_USER__}/g" mempool-config.json
-sed -i "s/__CORE_RPC_PASSWORD__/${__CORE_RPC_PASS__}/g" mempool-config.json
+sed -i "s/__CORE_RPC_USERNAME__/${__CORE_RPC_USERNAME__}/g" mempool-config.json
+sed -i "s/__CORE_RPC_PASSWORD__/${__CORE_RPC_PASSWORD__}/g" mempool-config.json
 
-sed -i "s/__ELECTRUM_HTTP_HOST__/${__ELECTRUM_HTTP_HOST__}/g" mempool-config.json
-sed -i "s/__ELECTRUM_HTTP_PORT__/${__ELECTRUM_HTTP_PORT__}/g" mempool-config.json
+sed -i "s/__ELECTRUM_HOST__/${__ELECTRUM_HOST__}/g" mempool-config.json
+sed -i "s/__ELECTRUM_PORT__/${__ELECTRUM_PORT__}/g" mempool-config.json
 sed -i "s/__ELECTRUM_TLS_ENABLED__/${__ELECTRUM_TLS_ENABLED__}/g" mempool-config.json
 
 sed -i "s!__ESPLORA_REST_API_URL__!${__ESPLORA_REST_API_URL__}!g" mempool-config.json
 
-sed -i "s/__SECOND_RPC_HOST__/${__SECOND_RPC_HOST__}/g" mempool-config.json
-sed -i "s/__SECOND_RPC_PORT__/${__SECOND_RPC_PORT__}/g" mempool-config.json
-sed -i "s/__SECOND_RPC_USERNAME__/${__SECOND_RPC_USERNAME__}/g" mempool-config.json
-sed -i "s/__SECOND_RPC_PASSWORD__/${__SECOND_RPC_PASSWORD__}/g" mempool-config.json
+sed -i "s/__SECOND_CORE_RPC_HOST__/${__SECOND_CORE_RPC_HOST__}/g" mempool-config.json
+sed -i "s/__SECOND_CORE_RPC_PORT__/${__SECOND_CORE_RPC_PORT__}/g" mempool-config.json
+sed -i "s/__SECOND_CORE_RPC_USERNAME__/${__SECOND_CORE_RPC_USERNAME__}/g" mempool-config.json
+sed -i "s/__SECOND_CORE_RPC_PASSWORD__/${__SECOND_CORE_RPC_PASSWORD__}/g" mempool-config.json
 
 sed -i "s/__DATABASE_ENABLED__/${__DATABASE_ENABLED__}/g" mempool-config.json
 sed -i "s/__DATABASE_HOST__/${__DATABASE_HOST__}/g" mempool-config.json