diff --git a/core/templates/vector.h b/core/templates/vector.h
index 08cbef6ba4c..033345d04c3 100644
--- a/core/templates/vector.h
+++ b/core/templates/vector.h
@@ -229,7 +229,7 @@ public:
 		_FORCE_INLINE_ bool operator==(const ConstIterator &b) const { return elem_ptr == b.elem_ptr; }
 		_FORCE_INLINE_ bool operator!=(const ConstIterator &b) const { return elem_ptr != b.elem_ptr; }
 
-		ConstIterator(T *p_ptr) { elem_ptr = p_ptr; }
+		ConstIterator(const T *p_ptr) { elem_ptr = p_ptr; }
 		ConstIterator() {}
 		ConstIterator(const ConstIterator &p_it) { elem_ptr = p_it.elem_ptr; }