diff --git a/include/Nazara/Core/SparsePtr.hpp b/include/Nazara/Core/SparsePtr.hpp
index 8d104827c..b077b6d56 100644
--- a/include/Nazara/Core/SparsePtr.hpp
+++ b/include/Nazara/Core/SparsePtr.hpp
@@ -46,7 +46,9 @@ class NzSparsePtr
 		T& operator[](int index) const;
 
 		NzSparsePtr operator+(int count) const;
+		NzSparsePtr operator+(unsigned int count) const;
 		NzSparsePtr operator-(int count) const;
+		NzSparsePtr operator-(unsigned int count) const;
 		std::ptrdiff_t operator-(const NzSparsePtr& ptr) const;
 
 		NzSparsePtr& operator+=(int count);
diff --git a/include/Nazara/Core/SparsePtr.inl b/include/Nazara/Core/SparsePtr.inl
index eb6c988ae..188996d4b 100644
--- a/include/Nazara/Core/SparsePtr.inl
+++ b/include/Nazara/Core/SparsePtr.inl
@@ -127,12 +127,24 @@ NzSparsePtr<T> NzSparsePtr<T>::operator+(int count) const
 	return NzSparsePtr(m_ptr + count*m_stride, m_stride);
 }
 
+template<typename T>
+NzSparsePtr<T> NzSparsePtr<T>::operator+(unsigned int count) const
+{
+	return NzSparsePtr(m_ptr + count*m_stride, m_stride);
+}
+
 template<typename T>
 NzSparsePtr<T> NzSparsePtr<T>::operator-(int count) const
 {
 	return NzSparsePtr(m_ptr - count*m_stride, m_stride);
 }
 
+template<typename T>
+NzSparsePtr<T> NzSparsePtr<T>::operator-(unsigned int count) const
+{
+	return NzSparsePtr(m_ptr - count*m_stride, m_stride);
+}
+
 template<typename T>
 std::ptrdiff_t NzSparsePtr<T>::operator-(const NzSparsePtr& ptr) const
 {