diff --git a/test/std/strings/basic.string/string.cons/copy_alloc.pass.cpp b/test/std/strings/basic.string/string.cons/copy_alloc.pass.cpp
index 092e9f5cb..2bfb931e5 100644
--- a/test/std/strings/basic.string/string.cons/copy_alloc.pass.cpp
+++ b/test/std/strings/basic.string/string.cons/copy_alloc.pass.cpp
@@ -44,7 +44,7 @@ struct poca_alloc {
 
     alloc_imp<T> *imp;
 
-    poca_alloc(alloc_imp<T> *imp) : imp (imp) {}
+    poca_alloc(alloc_imp<T> *ximp) : imp (ximp) {}
 
     template <class U>
     poca_alloc(const poca_alloc<U>& other) : imp(other.imp) {}