diff --git a/mach/i80/ncg/table b/mach/i80/ncg/table
index 01f57a25..d64da621 100644
--- a/mach/i80/ncg/table
+++ b/mach/i80/ncg/table
@@ -532,7 +532,7 @@ gen dad lb
     mov {m},e
 
 pat stf
-with hl_or_de
+with hl_or_de STACK
 uses hl_or_de={const2,$1}
 gen dad de
     pop de