diff --git a/.env.example b/.env.example
index dc6ba5d..58d6a52 100644
--- a/.env.example
+++ b/.env.example
@@ -3,3 +3,4 @@ NODE_PORT=8020
 NODE_AUTH_TOKEN=your-auth-token
 BUILD_CACHE=true
 CACHE_PATH=./block-cache
+BLOCK_RANGE_MAX=1000