1 files changed, 3 insertions, 2 deletions
diff --git a/build/rule.cxx b/build/rule.cxx
index a99611b..b3dfaeb 100644
--- a/build/rule.cxx
+++ b/build/rule.cxx
@@ -7,14 +7,15 @@
 #include <utility>      // move()
 #include <system_error>
 
+#include <butl/filesystem>
+
 #include <build/scope>
 #include <build/algorithm>
 #include <build/diagnostics>
-#include <build/timestamp>
-#include <build/filesystem>
 #include <build/context>
 
 using namespace std;
+using namespace butl;
 
 namespace build
 {