diff --git a/include/date/date.h b/include/date/date.h
index fc46816..be50b42 100644
--- a/include/date/date.h
+++ b/include/date/date.h
@@ -1877,6 +1877,10 @@ weekday_indexed::ok() const NOEXCEPT
     return weekday().ok() && 1 <= index_ && index_ <= 5;
 }
 
+#ifdef __GNUC__
+#  pragma GCC diagnostic push
+#  pragma GCC diagnostic ignored "-Wconversion"
+
 CONSTCD11
 inline
 weekday_indexed::weekday_indexed(const date::weekday& wd, unsigned index) NOEXCEPT
@@ -1884,6 +1888,9 @@ weekday_indexed::weekday_indexed(const date::weekday& wd, unsigned index) NOEXCE
     , index_(static_cast<decltype(index_)>(index))
     {}
 
+#  pragma GCC diagnostic pop
+#endif  // __GNUC__
+
 template<class CharT, class Traits>
 inline
 std::basic_ostream<CharT, Traits>&