diff --git a/vpnor/test/write_patch.cpp b/vpnor/test/write_patch.cpp
index 4a200c0..49d1d1a 100644
--- a/vpnor/test/write_patch.cpp
+++ b/vpnor/test/write_patch.cpp
@@ -18,7 +18,7 @@
 #include <unistd.h>
 
 #include <cassert>
-#include <experimental/filesystem>
+#include <filesystem>
 
 static constexpr auto BLOCK_SIZE = 0x1000;
 static constexpr auto DATA_SIZE = 8;
@@ -32,7 +32,7 @@
 
 int main(void)
 {
-    namespace fs = std::experimental::filesystem;
+    namespace fs = std::filesystem;
     namespace test = openpower::virtual_pnor::test;
 
     struct mbox_context _ctx, *ctx = &_ctx;