diff --git a/include/spdlog/common-inl.h b/include/spdlog/common-inl.h
index d0c85c6b..84e5cf41 100644
--- a/include/spdlog/common-inl.h
+++ b/include/spdlog/common-inl.h
@@ -13,6 +13,9 @@
 namespace spdlog {
 namespace level {
 
+#if __cplusplus >= 201703L
+constexpr
+#endif
 static string_view_t level_string_views[] SPDLOG_LEVEL_NAMES;
 
 static const char *short_level_names[] SPDLOG_SHORT_LEVEL_NAMES;