diff --git a/projects/mips_sys/ise101/mips_sys/Makefile b/projects/mips_sys/ise101/mips_sys/Makefile
index 453b950..c43fd30 100644
--- a/projects/mips_sys/ise101/mips_sys/Makefile
+++ b/projects/mips_sys/ise101/mips_sys/Makefile
@@ -19,10 +19,9 @@ $(PRJ).ngc: $(DIRS) $(PREQ)
 
 $(PRJ).ngd: netlist ./ucf/$(PRJ).ucf
 	ngdbuild -p $(DEVICE) -sd "../../../../lib/CPUs/MIPS/syn/ise101" -dd _ngo -nt timestamp -uc ./ucf/$(PRJ).ucf $(PRJ).ngc $(PRJ).ngd
-	cp $(PRJ).ngd $(PRJ)_map.ngd
 
 $(PRJ)_map.ncd: translate
-	map -intstyle xflow -p $(DEVICE) -timing -logic_opt on -ol high -xe n -t 1 -register_duplication -global_opt on	-retiming on -equivalent_register_removal on -cm area -pr b -k 4 -power off -o $(PRJ)_map.ncd $(PRJ)_map.ngd $(PRJ).pcf
+	map -intstyle xflow -p $(DEVICE) -timing -logic_opt on -ol high -xe n -t 1 -register_duplication -global_opt on	-retiming on -equivalent_register_removal on -cm area -pr b -k 4 -power off -o $(PRJ)_map.ncd $(PRJ).ngd $(PRJ).pcf
 
 $(PRJ).ncd: map
 	par -w -intstyle xflow -ol high -xe n -t 1 $(PRJ)_map.ncd $(PRJ).ncd $(PRJ).pcf