diff --git a/kernel/algo.h b/passes/opt/netlist.h
similarity index 100%
rename from kernel/algo.h
rename to passes/opt/netlist.h
diff --git a/passes/opt/opt_rmdff.cc b/passes/opt/opt_rmdff.cc
index f44e6e58c..0ab91ca9e 100644
--- a/passes/opt/opt_rmdff.cc
+++ b/passes/opt/opt_rmdff.cc
@@ -21,8 +21,8 @@
 #include "kernel/register.h"
 #include "kernel/rtlil.h"
 #include "kernel/satgen.h"
-#include "kernel/algo.h"
 #include "kernel/sigtools.h"
+#include "netlist.h"
 #include <stdio.h>
 #include <stdlib.h>