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