diff --git a/include/gsl/gsl_byte b/include/gsl/gsl_byte
index c0d78ce..0d74b13 100644
--- a/include/gsl/gsl_byte
+++ b/include/gsl/gsl_byte
@@ -59,8 +59,8 @@
 
 #ifndef GSL_USE_STD_BYTE
 #include <cstddef> /* __cpp_lib_byte */
-// this tests if we are under GCC or Clang with enough -std:c++1z power to get us std::byte
-// also check if libc++ version is sufficient (> 5.0) or libstc++ actually contains std::byte
+// this tests if we are under GCC or Clang with enough -std=c++1z power to get us std::byte
+// also check if libc++ version is sufficient (> 5.0) or libstdc++ actually contains std::byte
 #if defined(__cplusplus) && (__cplusplus >= 201703L) && \
   (defined(__cpp_lib_byte) && (__cpp_lib_byte >= 201603)  || \
    defined(_LIBCPP_VERSION) && (_LIBCPP_VERSION >= 5000))