diff --git a/src/math/vec.hpp b/src/math/vec.hpp
index 670a3677c..935725b3c 100644
--- a/src/math/vec.hpp
+++ b/src/math/vec.hpp
@@ -22,9 +22,9 @@ struct Vec2
 {
 	T x, y;
 
-	Vec2() : x{}, y{} {}
-	Vec2(T x_, T y_) : x(x_), y(y_) {}
-	Vec2(T z) : x(z), y(z) {}
+	constexpr Vec2() : x{}, y{} {}
+	constexpr Vec2(T x_, T y_) : x(x_), y(y_) {}
+	constexpr Vec2(T z) : x(z), y(z) {}
 
 	template <typename U>
 	Vec2(const Vec2<U>& b) : Vec2(b.x, b.y) {}