diff --git a/Makefile b/Makefile
index 7554b1d29..ec9e7d1ab 100644
--- a/Makefile
+++ b/Makefile
@@ -712,8 +712,9 @@ include $(YOSYS_SRC)/passes/equiv/Makefile.inc
 include $(YOSYS_SRC)/passes/cmds/Makefile.inc
 include $(YOSYS_SRC)/passes/silimate/Makefile.inc
 
-OBJS += passes/opt/pmux2shiftx.o
 OBJS += passes/opt/muxpack.o
+OBJS += passes/opt/opt_demorgan.o
+OBJS += passes/opt/pmux2shiftx.o
 OBJS += passes/opt/wreduce.o
 OBJS += passes/sat/sim.o
 OBJS += passes/techmap/extract.o