diff --git a/src/mlpack/methods/ann/layer/add.hpp b/src/mlpack/methods/ann/layer/add.hpp
index 0ac04f7039..8645f38612 100644
--- a/src/mlpack/methods/ann/layer/add.hpp
+++ b/src/mlpack/methods/ann/layer/add.hpp
@@ -1,4 +1,3 @@
-// Temporarily drop.
 /**
  * @file methods/ann/layer/add.hpp
  * @author Marcus Edel
diff --git a/src/mlpack/methods/ann/layer/linear3d.hpp b/src/mlpack/methods/ann/layer/linear3d.hpp
index 4ddc8e140e..6b9b554ea7 100644
--- a/src/mlpack/methods/ann/layer/linear3d.hpp
+++ b/src/mlpack/methods/ann/layer/linear3d.hpp
@@ -1,4 +1,3 @@
-// Temporarily drop.
 /**
  * @file methods/ann/layer/linear3d.hpp
  * @author Mrityunjay Tripathi
diff --git a/src/mlpack/methods/ann/layer/noisylinear.hpp b/src/mlpack/methods/ann/layer/noisylinear.hpp
index e6e8a51abc..feac41131f 100644
--- a/src/mlpack/methods/ann/layer/noisylinear.hpp
+++ b/src/mlpack/methods/ann/layer/noisylinear.hpp
@@ -1,4 +1,3 @@
-// Temporarily drop.
 /**
  * @file methods/ann/layer/noisylinear.hpp
  * @author Nishant Kumar