diff --git a/docs/OOM User Guide/oom_user_guide.rst b/docs/OOM User Guide/oom_user_guide.rst
index ee3b2f1..d6d5750 100644
--- a/docs/OOM User Guide/oom_user_guide.rst
+++ b/docs/OOM User Guide/oom_user_guide.rst
@@ -925,7 +925,7 @@
 
 MSB Usage Instructions
 ----------------------
-MSB provides kubernetes charts in OOM, so it can be spun up by oom oneclick command. 
+MSB provides kubernetes charts in OOM, so it can be spun up by oom oneclick command.
 
 Please note that kubernetes authentication token must be set at *kubernetes/kube2msb/values.yaml* so the kube2msb registrator can get the access to watch the kubernetes events and get service annotation by kubernetes APIs. The token can be found in the kubectl configuration file *~/.kube/config*