diff --git a/include/Nazara/Core/HandledObject.inl b/include/Nazara/Core/HandledObject.inl
index 8f1e497a0..6addf9c77 100644
--- a/include/Nazara/Core/HandledObject.inl
+++ b/include/Nazara/Core/HandledObject.inl
@@ -61,7 +61,7 @@ namespace Nz
 	template<typename U>
 	ObjectHandle<U> HandledObject<T>::CreateHandle()
 	{
-		static_assert(std::is_base_of_v<T, U>, "Cannot retrieve a handle for a non-related class");
+		static_assert(std::is_base_of<T, U>::value, "Cannot retrieve a handle for a non-related class");
 		return ObjectHandle<U>(static_cast<U*>(this));
 	}
 
diff --git a/include/Nazara/Core/ObjectHandle.inl b/include/Nazara/Core/ObjectHandle.inl
index 1a3d09b9b..be3ec5c0c 100644
--- a/include/Nazara/Core/ObjectHandle.inl
+++ b/include/Nazara/Core/ObjectHandle.inl
@@ -31,7 +31,7 @@ namespace Nz
 	ObjectHandle<T>::ObjectHandle(const ObjectHandle<U>& ref) :
 	m_handleData(ref.m_handleData)
 	{
-		static_assert(std::is_base_of_v<T, U>, "Can only implicitly convert from a derived to a base");
+		static_assert(std::is_base_of<T, U>::value, "Can only implicitly convert from a derived to a base");
 	}
 
 	template<typename T>
@@ -41,7 +41,7 @@ namespace Nz
 	{
 		ref.m_handleData = Detail::HandleData::GetEmptyObject();
 
-		static_assert(std::is_base_of_v<T, U>, "Can only implicitly convert from a derived to a base");
+		static_assert(std::is_base_of<T, U>::value, "Can only implicitly convert from a derived to a base");
 	}
 
 	/*!