diff --git a/src/mlpack/methods/ann/layer/padding_impl.hpp b/src/mlpack/methods/ann/layer/padding_impl.hpp
index 7e2048abe0..8578e7ca09 100644
--- a/src/mlpack/methods/ann/layer/padding_impl.hpp
+++ b/src/mlpack/methods/ann/layer/padding_impl.hpp
@@ -24,7 +24,7 @@ Padding<InputDataType, OutputDataType>::Padding(
     const size_t padWLeft,
     const size_t padWRight,
     const size_t padHTop,
-    const size_t padHBottom):
+    const size_t padHBottom) :
     padWLeft(padWLeft),
     padWRight(padWRight),
     padHTop(padHTop),