diff --git a/vpnor/test/write_ro.cpp b/vpnor/test/write_ro.cpp
index 5965ebf..b125236 100644
--- a/vpnor/test/write_ro.cpp
+++ b/vpnor/test/write_ro.cpp
@@ -26,7 +26,7 @@
 
 int main(void)
 {
-    namespace fs = std::experimental::filesystem;
+    namespace fs = std::filesystem;
     namespace test = openpower::virtual_pnor::test;
 
     struct mbox_context _ctx, *ctx = &_ctx;