diff --git a/passes/techmap/abc.cc b/passes/techmap/abc.cc
index d2d15a4a9..b215b1ea4 100644
--- a/passes/techmap/abc.cc
+++ b/passes/techmap/abc.cc
@@ -52,6 +52,8 @@
 #include <cerrno>
 #include <sstream>
 #include <climits>
+#include <array>
+#include <functional>
 
 #ifndef _WIN32
 #  include <unistd.h>