diff --git a/include/gsl/span b/include/gsl/span
index fcc74aa..aff06ac 100644
--- a/include/gsl/span
+++ b/include/gsl/span
@@ -420,24 +420,24 @@ public:
     constexpr span() noexcept : storage_(nullptr, details::extent_type<0>())
     {}
 
-    template<std::size_t SpanExtent = Extent, std::enable_if_t<SpanExtent != gsl::dynamic_extent, int> = 0>
+    template <std::size_t SpanExtent = Extent, std::enable_if_t<SpanExtent != gsl::dynamic_extent, int> = 0>
     constexpr explicit span(pointer ptr, size_type count) noexcept : storage_(ptr, count)
     {
         Expects(count == Extent);
     }
 
-    template<std::size_t SpanExtent = Extent, std::enable_if_t<SpanExtent == gsl::dynamic_extent, int> = 0>
+    template <std::size_t SpanExtent = Extent, std::enable_if_t<SpanExtent == gsl::dynamic_extent, int> = 0>
     constexpr span(pointer ptr, size_type count) noexcept : storage_(ptr, count)
     {}
 
-    template<std::size_t SpanExtent = Extent, std::enable_if_t<SpanExtent != gsl::dynamic_extent, int> = 0>
+    template <std::size_t SpanExtent = Extent, std::enable_if_t<SpanExtent != gsl::dynamic_extent, int> = 0>
     constexpr explicit span(pointer firstElem, pointer lastElem) noexcept
         : storage_(firstElem, static_cast<std::size_t>(lastElem - firstElem))
     {
         Expects(lastElem - firstElem == static_cast<difference_type>(Extent));
     }
 
-    template<std::size_t SpanExtent = Extent, std::enable_if_t<SpanExtent == gsl::dynamic_extent, int> = 0>
+    template <std::size_t SpanExtent = Extent, std::enable_if_t<SpanExtent == gsl::dynamic_extent, int> = 0>
     constexpr span(pointer firstElem, pointer lastElem) noexcept
         : storage_(firstElem, static_cast<std::size_t>(lastElem - firstElem))
     {}