diff --git a/docs/en/setup/backend/backend-setup.md b/docs/en/setup/backend/backend-setup.md
index 0e1cedef8ca2..8d95dcd732fe 100755
--- a/docs/en/setup/backend/backend-setup.md
+++ b/docs/en/setup/backend/backend-setup.md
@@ -24,13 +24,13 @@ Use the docker mode to run BanyanDB containerized.
 # The compatible version number could be found in /config/bydb.dependencies.properties
 export BYDB_VERSION=xxx
 
-docker pull apache/skywalking-banyandb:$BYDB_VERSION
+docker pull apache/skywalking-banyandb:${BYDB_VERSION}
 
 docker run -d \
   -p 17912:17912 \
   -p 17913:17913 \
   --name banyandb \
-  apache/skywalking-banyandb:$BYDB_VERSION \
+  apache/skywalking-banyandb:${BYDB_VERSION} \
   standalone
 ```
 
diff --git a/docs/en/setup/backend/storages/banyandb.md b/docs/en/setup/backend/storages/banyandb.md
index b6c7c6c7af49..954e31d27827 100644
--- a/docs/en/setup/backend/storages/banyandb.md
+++ b/docs/en/setup/backend/storages/banyandb.md
@@ -100,13 +100,13 @@ Use the docker mode to run BanyanDB containerized.
 # The compatible version number could be found in /config/bydb.dependencies.properties
 export BYDB_VERSION=xxx
 
-docker pull apache/skywalking-banyandb:$BYDB_VERSION
+docker pull apache/skywalking-banyandb:${BYDB_VERSION}
 
 docker run -d \
   -p 17912:17912 \
   -p 17913:17913 \
   --name banyandb \
-  apache/skywalking-banyandb:$BYDB_VERSION \
+  apache/skywalking-banyandb:${BYDB_VERSION} \
   standalone
 ```