diff --git a/caffe2fluid/doc/Crop.md b/caffe2fluid/doc/Crop.md
index 9a69c6cef5197793d0d4ab610d157217ba482387..3ecb170bb99dfe85b30a1f956f3448b39ed7bd40 100644
--- a/caffe2fluid/doc/Crop.md
+++ b/caffe2fluid/doc/Crop.md
@@ -9,7 +9,7 @@ layer {
     bottom: "data1"
     bottom: "data2"
     top: “crop"
-    crop_param{
+    crop_param {
         axis: 1
         offset: 0
         offset: 2