diff --git a/MXRDMA.md b/MXRDMA.md
index 83a5a96..3f385ff 100644
--- a/MXRDMA.md
+++ b/MXRDMA.md
@@ -23,7 +23,7 @@
 
 *   **配置YUM源**
 
-    ```shell
+    ```bash
    cat <<EOF> /etc/yum.repos.d/maca-rdma-rpm.repo 
    [maca-rdma]
    name=Maca Rdma Yum Repository
@@ -52,7 +52,7 @@
 
 *   **配置APT源**
 
-    ```shell
+    ```bash
    curl -fsSL https://repos.metax-tech.com/public.gpg.key | apt-key add -
    echo "deb [arch=$(dpkg --print-architecture)] https://repos.metax-tech.com/r/maca-rdma-deb/ stable main" | tee /etc/apt/sources.list.d/maca-rdma-deb.list
    apt-get update