diff --git a/include/algorithm b/include/algorithm
index a3764df..d91c57c 100644
--- a/include/algorithm
+++ b/include/algorithm
@@ -1573,7 +1573,7 @@
 >::type
 copy_n(_InputIterator __first, _Size __n, _OutputIterator __result)
 {
-    return copy(__first, __first + __n, __result);
+    return _STD::copy(__first, __first + __n, __result);
 }
 
 // move