diff --git a/docs/tutorials/mkldnn/MKLDNN_README.md b/docs/tutorials/mkldnn/MKLDNN_README.md
index 5a073f91e09f..d38c50338036 100644
--- a/docs/tutorials/mkldnn/MKLDNN_README.md
+++ b/docs/tutorials/mkldnn/MKLDNN_README.md
@@ -309,7 +309,7 @@ Graph optimization by subgraph feature are available in master branch. You can b
 export MXNET_SUBGRAPH_BACKEND=MKLDNN
 ```
 
-When `MKLDNN` backend is enabled, advanced control options are avaliable
+When `MKLDNN` backend is enabled, advanced control options are avaliable:
 
 ```
 export MXNET_DISABLE_MKLDNN_CONV_OPT=1 # disable MKLDNN convolution optimization pass