diff --git a/include/etl/algorithm.h b/include/etl/algorithm.h
index 59f8b9be6..3929a57d8 100644
--- a/include/etl/algorithm.h
+++ b/include/etl/algorithm.h
@@ -342,6 +342,7 @@ namespace etl
   //***************************************************************************
   // Pointers
   template <typename TIterator>
+  ETL_CONSTEXPR14
   typename etl::enable_if<etl::is_pointer<TIterator>::value, void>::type
     reverse(TIterator b, TIterator e)
   {
@@ -357,6 +358,7 @@ namespace etl
 
   // Non-pointers
   template <typename TIterator>
+  ETL_CONSTEXPR14
   typename etl::enable_if<!etl::is_pointer<TIterator>::value, void>::type
     reverse(TIterator b, TIterator e)
   {