diff --git a/include/Nazara/Math/Box.inl b/include/Nazara/Math/Box.inl
index b7873d064..58904abc3 100644
--- a/include/Nazara/Math/Box.inl
+++ b/include/Nazara/Math/Box.inl
@@ -56,9 +56,9 @@ NzBox<T>::NzBox(const NzBox<U>& box)
 template<typename T>
 bool NzBox<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;
 }
 
 template<typename T>
diff --git a/include/Nazara/Math/Rect.inl b/include/Nazara/Math/Rect.inl
index 9782ac69e..9fba791c0 100644
--- a/include/Nazara/Math/Rect.inl
+++ b/include/Nazara/Math/Rect.inl
@@ -50,8 +50,8 @@ NzRect<T>::NzRect(const NzRect<U>& rect)
 template<typename T>
 bool NzRect<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;
 }
 
 template<typename T>