diff --git a/tests/techmap/han-carlson.tcl b/tests/techmap/han-carlson.tcl
index 7029be57f..0d9068b5e 100644
--- a/tests/techmap/han-carlson.tcl
+++ b/tests/techmap/han-carlson.tcl
@@ -8,7 +8,7 @@ for {set i 1} {$i <= 16} {incr i} {
     design -load init
     chparam -set WIDTH $i
     yosys proc
-    opt_clean -purge
+    opt_clean
     equiv_make lcu _80_lcu_han_carlson equiv
     equiv_simple equiv
     equiv_status -assert equiv
diff --git a/tests/techmap/kogge-stone.tcl b/tests/techmap/kogge-stone.tcl
index b6a4ef54e..1209b1338 100644
--- a/tests/techmap/kogge-stone.tcl
+++ b/tests/techmap/kogge-stone.tcl
@@ -8,7 +8,7 @@ for {set i 1} {$i <= 16} {incr i} {
     design -load init
     chparam -set WIDTH $i
     yosys proc
-    opt_clean -purge
+    opt_clean
     equiv_make lcu _80_lcu_kogge_stone equiv
     equiv_simple equiv
     equiv_status -assert equiv