diff --git a/include/stdex/html.hpp b/include/stdex/html.hpp
index d9fae66b9..a6c7c8cdf 100644
--- a/include/stdex/html.hpp
+++ b/include/stdex/html.hpp
@@ -1654,7 +1654,7 @@ namespace stdex
 			///
 			/// Parses HTML source code by chunks
 			///
-			void append(_In_reads_or_z_opt_(num_chars) const T* source, _In_ size_t num_chars)
+			void append(_In_reads_or_z_opt_(num_chars) const T* source, _In_ size_t num_chars = SIZE_MAX)
 			{
 				stdex_assert(source || !num_chars);
 				m_source.append(source, stdex::strnlen(source, num_chars));
@@ -1878,7 +1878,7 @@ namespace stdex
 			///
 			/// Parses HTML document source code
 			///
-			void assign(_In_reads_or_z_opt_(num_chars) const T* source, _In_ size_t num_chars)
+			void assign(_In_reads_or_z_opt_(num_chars) const T* source, _In_ size_t num_chars = SIZE_MAX)
 			{
 				clear();
 				append(source, num_chars);
@@ -2136,7 +2136,7 @@ namespace stdex
 		};
 
 		///
-		/// HTTP token representing an URL
+		/// HTML token representing an URL
 		///
 		template<class T, class TR = std::char_traits<T>, class AX = std::allocator<T>>
 		class url_token : public token