diff --git a/src/color.hpp b/src/color.hpp
index 199dc38ef8ed..4de7acffedb1 100644
--- a/src/color.hpp
+++ b/src/color.hpp
@@ -254,7 +254,7 @@ namespace std
 	template<>
 	struct hash<color_t>
 	{
-		std::size_t operator()(const color_t& c) const
+		std::size_t operator()(const color_t& c) const noexcept
 		{
 			return c.to_rgba_bytes();
 		}
diff --git a/src/map/location.hpp b/src/map/location.hpp
index 0694eaa8ef32..5ee8a28f5303 100644
--- a/src/map/location.hpp
+++ b/src/map/location.hpp
@@ -210,7 +210,7 @@ std::ostream &operator<<(std::ostream &s, const std::vector<map_location>& v);
 namespace std {
 template<>
 struct hash<map_location> {
-	std::size_t operator()(const map_location& l) const {
+	std::size_t operator()(const map_location& l) const noexcept {
 		// The 2000 bias supposedly ensures that the correct x is recovered for negative y
 		// This implementation copied from the Lua location_set
 		return (l.wml_x()) * 16384 + (l.wml_y()) + 2000;