diff --git a/src/System/Types.hpp b/src/System/Types.hpp
index d99205b..165df56 100644
--- a/src/System/Types.hpp
+++ b/src/System/Types.hpp
@@ -60,7 +60,7 @@
 {
 	vec() = default;
 
-	explicit vec(T replicate)
+	constexpr explicit vec(T replicate)
 	{
 		for(int i = 0; i < N; i++)
 		{