diff --git a/lix/libmain/progress-bar.hh b/lix/libmain/progress-bar.hh
index d8826fe13..bbda5b741 100644
--- a/lix/libmain/progress-bar.hh
+++ b/lix/libmain/progress-bar.hh
@@ -2,6 +2,7 @@
 ///@file
 
 #include <chrono>
+#include <thread>
 
 #include "lix/libutil/logging.hh"
 #include "lix/libutil/sync.hh"
diff --git a/lix/libutil/hilite.cc b/lix/libutil/hilite.cc
index 1b5d9b916..735a6483e 100644
--- a/lix/libutil/hilite.cc
+++ b/lix/libutil/hilite.cc
@@ -1,5 +1,7 @@
 #include "lix/libutil/hilite.hh"
 
+#include <algorithm>
+
 namespace nix {
 
 std::string hiliteMatches(