diff --git a/cmake/CompilerWarnings.cmake b/cmake/CompilerWarnings.cmake
index 0f95e6e6..87903b4b 100644
--- a/cmake/CompilerWarnings.cmake
+++ b/cmake/CompilerWarnings.cmake
@@ -27,7 +27,7 @@ function(set_file_warnings)
         /w14905 # wide string literal cast to 'LPSTR'
         /w14906 # string literal cast to 'LPWSTR'
         /w14928 # illegal copy-initialization; more than one user-defined conversion has been implicitly applied
-        # /permissive- # standards conformance mode for MSVC compiler. Disabled until all out-of-the-box Windows SDKs can successfully build with it.
+        /permissive- # standards conformance mode
 
         # Disables, remove when appropriate
         /wd4996 # disable warnings about deprecated functions
diff --git a/include/SFML/System/Vector2.inl b/include/SFML/System/Vector2.inl
index 9a256d0f..e00df846 100644
--- a/include/SFML/System/Vector2.inl
+++ b/include/SFML/System/Vector2.inl
@@ -288,7 +288,7 @@ constexpr bool operator !=(const Vector2<T>& left, const Vector2<T>& right)
 ////////////////////////////////////////////////////////////
 
 template <typename T>
-constexpr Vector2<T> Vector2<T>::UnitX(static_cast<T>(1), static_cast<T>(0));
+const Vector2<T> Vector2<T>::UnitX(static_cast<T>(1), static_cast<T>(0));
 
 template <typename T>
-constexpr Vector2<T> Vector2<T>::UnitY(static_cast<T>(0), static_cast<T>(1));
+const Vector2<T> Vector2<T>::UnitY(static_cast<T>(0), static_cast<T>(1));