diff --git a/doc/fluid/api/layers.rst b/doc/fluid/api/layers.rst
index c104525f54553fefc5eb4cfc60ec09ba4ab2749b..5595c344120d529e251cb5cf2d506b6acc218292 100644
--- a/doc/fluid/api/layers.rst
+++ b/doc/fluid/api/layers.rst
@@ -96,6 +96,7 @@ fluid.layers
     layers/elu.rst
     layers/embedding.rst
     layers/equal.rst
+    layers/erf.rst
     layers/exp.rst
     layers/expand.rst
     layers/expand_as.rst
diff --git a/doc/fluid/api_cn/layers_cn.rst b/doc/fluid/api_cn/layers_cn.rst
index cbc1e1b30069fb03facfdcb346ced3cfe5024fcf..e4b4a374f57f8dc05fd2781c74d21399612859f0 100644
--- a/doc/fluid/api_cn/layers_cn.rst
+++ b/doc/fluid/api_cn/layers_cn.rst
@@ -101,6 +101,7 @@ fluid.layers
     layers_cn/elu_cn.rst
     layers_cn/embedding_cn.rst
     layers_cn/equal_cn.rst
+    layers_cn/erf_cn.rst
     layers_cn/exp_cn.rst
     layers_cn/expand_cn.rst
     layers_cn/expand_as_cn.rst