diff --git a/caffe2fluid/doc/Accuracy.md b/caffe2fluid/doc/Accuracy.md
index 6c08a6db7772b98a68c43e29efbc698ebacf7e82..17239d5a3d5e7c53f054a439ca2abf5bdd6b9004 100644
--- a/caffe2fluid/doc/Accuracy.md
+++ b/caffe2fluid/doc/Accuracy.md
@@ -21,9 +21,9 @@ layer {
 paddle.fluid.layers.accuracy(
     input,
     label,
-    k = 1,
-    correct = None,
-    total = None
+    k=1,
+    correct=None,
+    total=None
 )
 ```