diff --git a/libcxx/src/filesystem/operations.cpp b/libcxx/src/filesystem/operations.cpp
--- a/libcxx/src/filesystem/operations.cpp
+++ b/libcxx/src/filesystem/operations.cpp
@@ -1717,6 +1717,7 @@
   if (NeedTrailingSep)
     Result /= PS("");
 
+  Result.make_preferred();
   return Result;
 }