diff --git a/backend/src/__fixtures__/mempool-config.template.json b/backend/src/__fixtures__/mempool-config.template.json
index 07e930903..0ad2bc10d 100644
--- a/backend/src/__fixtures__/mempool-config.template.json
+++ b/backend/src/__fixtures__/mempool-config.template.json
@@ -29,7 +29,7 @@
     "ADVANCED_GBT_MEMPOOL": "__MEMPOOL_ADVANCED_GBT_MEMPOOL__",
     "CPFP_INDEXING": "__MEMPOOL_CPFP_INDEXING__",
     "MAX_BLOCKS_BULK_QUERY": "__MEMPOOL_MAX_BLOCKS_BULK_QUERY__",
-    "DISK_CACHE_BLOCK_INTERVAL": "__DISK_CACHE_BLOCK_INTERVAL__"
+    "DISK_CACHE_BLOCK_INTERVAL": "__MEMPOOL_DISK_CACHE_BLOCK_INTERVAL__"
   },
   "CORE_RPC": {
     "HOST": "__CORE_RPC_HOST__",
diff --git a/docker/backend/mempool-config.json b/docker/backend/mempool-config.json
index 962a1509a..6e20cc695 100644
--- a/docker/backend/mempool-config.json
+++ b/docker/backend/mempool-config.json
@@ -27,7 +27,7 @@
     "ADVANCED_GBT_MEMPOOL": __MEMPOOL_ADVANCED_GBT_MEMPOOL__,
     "CPFP_INDEXING": __MEMPOOL_CPFP_INDEXING__,
     "MAX_BLOCKS_BULK_QUERY": __MEMPOOL_MAX_BLOCKS_BULK_QUERY__,
-    "DISK_CACHE_BLOCK_INTERVAL": __DISK_CACHE_BLOCK_INTERVAL__
+    "DISK_CACHE_BLOCK_INTERVAL": __MEMPOOL_DISK_CACHE_BLOCK_INTERVAL__
   },
   "CORE_RPC": {
     "HOST": "__CORE_RPC_HOST__",