diff --git a/include/sol/optional_implementation.hpp b/include/sol/optional_implementation.hpp
index 754e2731..4bb72d6a 100644
--- a/include/sol/optional_implementation.hpp
+++ b/include/sol/optional_implementation.hpp
@@ -657,7 +657,7 @@ namespace sol {
 	class bad_optional_access : public std::exception {
 	public:
 		bad_optional_access() = default;
-		const char* what() const noexcept {
+		const char* what() const noexcept override {
 			return "Optional has no value";
 		}
 	};
diff --git a/single/include/sol/sol.hpp b/single/include/sol/sol.hpp
index 9de93275..75e4cc5b 100644
--- a/single/include/sol/sol.hpp
+++ b/single/include/sol/sol.hpp
@@ -4631,7 +4631,7 @@ namespace sol {
 	class bad_optional_access : public std::exception {
 	public:
 		bad_optional_access() = default;
-		const char* what() const noexcept {
+		const char* what() const noexcept override {
 			return "Optional has no value";
 		}
 	};