diff --git a/backend/mempool-config.sample.json b/backend/mempool-config.sample.json
index c98a070f1..79afbae13 100644
--- a/backend/mempool-config.sample.json
+++ b/backend/mempool-config.sample.json
@@ -29,6 +29,7 @@
     "POOLS_JSON_TREE_URL": "https://api.github.com/repos/mempool/mining-pools/git/trees/master",
     "AUDIT": false,
     "RUST_GBT": false,
+    "LIMIT_GBT": false,
     "CPFP_INDEXING": false,
     "DISK_CACHE_BLOCK_INTERVAL": 6,
     "MAX_PUSH_TX_SIZE_WEIGHT": 4000000,
diff --git a/backend/src/__fixtures__/mempool-config.template.json b/backend/src/__fixtures__/mempool-config.template.json
index 7d571c169..41e9cce4e 100644
--- a/backend/src/__fixtures__/mempool-config.template.json
+++ b/backend/src/__fixtures__/mempool-config.template.json
@@ -29,6 +29,7 @@
     "POOLS_JSON_URL": "__MEMPOOL_POOLS_JSON_URL__",
     "AUDIT": true,
     "RUST_GBT": false,
+    "LIMIT_GBT": false,
     "CPFP_INDEXING": true,
     "MAX_BLOCKS_BULK_QUERY": 999,
     "DISK_CACHE_BLOCK_INTERVAL": 999,
diff --git a/backend/src/__tests__/config.test.ts b/backend/src/__tests__/config.test.ts
index 84c2e763b..75661951e 100644
--- a/backend/src/__tests__/config.test.ts
+++ b/backend/src/__tests__/config.test.ts
@@ -42,6 +42,7 @@ describe('Mempool Backend Config', () => {
         POOLS_JSON_URL: 'https://raw.githubusercontent.com/mempool/mining-pools/master/pools-v2.json',
         AUDIT: false,
         RUST_GBT: false,
+        LIMIT_GBT: false,
         CPFP_INDEXING: false,
         MAX_BLOCKS_BULK_QUERY: 0,
         DISK_CACHE_BLOCK_INTERVAL: 6,
diff --git a/docker/backend/mempool-config.json b/docker/backend/mempool-config.json
index 0403ba42e..0d6017788 100644
--- a/docker/backend/mempool-config.json
+++ b/docker/backend/mempool-config.json
@@ -27,6 +27,7 @@
     "AUTOMATIC_BLOCK_REINDEXING": __MEMPOOL_AUTOMATIC_BLOCK_REINDEXING__,
     "AUDIT": __MEMPOOL_AUDIT__,
     "RUST_GBT": __MEMPOOL_RUST_GBT__,
+    "LIMIT_GBT": __MEMPOOL_LIMIT_GBT__,
     "CPFP_INDEXING": __MEMPOOL_CPFP_INDEXING__,
     "MAX_BLOCKS_BULK_QUERY": __MEMPOOL_MAX_BLOCKS_BULK_QUERY__,
     "DISK_CACHE_BLOCK_INTERVAL": __MEMPOOL_DISK_CACHE_BLOCK_INTERVAL__,
diff --git a/docker/backend/start.sh b/docker/backend/start.sh
index 39870ab0c..aecdac8f1 100755
--- a/docker/backend/start.sh
+++ b/docker/backend/start.sh
@@ -30,6 +30,7 @@ __MEMPOOL_POOLS_JSON_URL__=${MEMPOOL_POOLS_JSON_URL:=https://raw.githubuserconte
 __MEMPOOL_POOLS_JSON_TREE_URL__=${MEMPOOL_POOLS_JSON_TREE_URL:=https://api.github.com/repos/mempool/mining-pools/git/trees/master}
 __MEMPOOL_AUDIT__=${MEMPOOL_AUDIT:=false}
 __MEMPOOL_RUST_GBT__=${MEMPOOL_RUST_GBT:=false}
+__MEMPOOL_LIMIT_GBT__=${MEMPOOL_LIMIT_GBT:=false}
 __MEMPOOL_CPFP_INDEXING__=${MEMPOOL_CPFP_INDEXING:=false}
 __MEMPOOL_MAX_BLOCKS_BULK_QUERY__=${MEMPOOL_MAX_BLOCKS_BULK_QUERY:=0}
 __MEMPOOL_DISK_CACHE_BLOCK_INTERVAL__=${MEMPOOL_DISK_CACHE_BLOCK_INTERVAL:=6}
@@ -188,6 +189,7 @@ sed -i "s!__MEMPOOL_POOLS_JSON_URL__!${__MEMPOOL_POOLS_JSON_URL__}!g" mempool-co
 sed -i "s!__MEMPOOL_POOLS_JSON_TREE_URL__!${__MEMPOOL_POOLS_JSON_TREE_URL__}!g" mempool-config.json
 sed -i "s!__MEMPOOL_AUDIT__!${__MEMPOOL_AUDIT__}!g" mempool-config.json
 sed -i "s!__MEMPOOL_RUST_GBT__!${__MEMPOOL_RUST_GBT__}!g" mempool-config.json
+sed -i "s!__MEMPOOL_LIMIT_GBT__!${__MEMPOOL_LIMIT_GBT__}!g" mempool-config.json
 sed -i "s!__MEMPOOL_CPFP_INDEXING__!${__MEMPOOL_CPFP_INDEXING__}!g" mempool-config.json
 sed -i "s!__MEMPOOL_MAX_BLOCKS_BULK_QUERY__!${__MEMPOOL_MAX_BLOCKS_BULK_QUERY__}!g" mempool-config.json
 sed -i "s!__MEMPOOL_DISK_CACHE_BLOCK_INTERVAL__!${__MEMPOOL_DISK_CACHE_BLOCK_INTERVAL__}!g" mempool-config.json