diff --git a/include/Nazara/Math/Box.inl b/include/Nazara/Math/Box.inl
index 1b5276ee6..60275b206 100644
--- a/include/Nazara/Math/Box.inl
+++ b/include/Nazara/Math/Box.inl
@@ -133,9 +133,9 @@ namespace Nz
 	template<typename T>
 	bool Box<T>::Contains(T X, T Y, T Z) const
 	{
-		return X >= x && X <= x + width &&
-		       Y >= y && Y <= y + height &&
-		       Z >= z && Z <= z + depth;
+		return X >= x && X < x + width &&
+		       Y >= y && Y < y + height &&
+		       Z >= z && Z < z + depth;
 	}
 
 	/*!
diff --git a/include/Nazara/Math/Rect.inl b/include/Nazara/Math/Rect.inl
index 47a837cbd..f5d96c249 100644
--- a/include/Nazara/Math/Rect.inl
+++ b/include/Nazara/Math/Rect.inl
@@ -117,8 +117,8 @@ namespace Nz
 	template<typename T>
 	bool Rect<T>::Contains(T X, T Y) const
 	{
-		return X >= x && X <= (x + width) &&
-		       Y >= y && Y <= (y + height);
+		return X >= x && X < (x + width) &&
+		       Y >= y && Y < (y + height);
 	}
 
 	/*!