diff --git a/sys/src/cmd/mklib b/sys/src/cmd/mklib
index d702075c0..91a1661e6 100644
--- a/sys/src/cmd/mklib
+++ b/sys/src/cmd/mklib
@@ -36,11 +36,10 @@ installall:V:
 		mk $stem
 
 nuke:V:
-	rm -f *.[$OS] y.tab.? y.output y.error
-	rm -f $LIB
+	rm -f *.[$OS] y.tab.? y.output y.error $CLEANFILES $LIB
 
 clean:V:
-	rm -f *.[$OS] y.tab.? y.output y.error
+	rm -f *.[$OS] y.tab.? y.output y.error $CLEANFILES
 
 update:V:
 	update $UPDATEFLAGS $UPDATE
diff --git a/sys/src/cmd/mkmany b/sys/src/cmd/mkmany
index a0bddcf27..094e92134 100644
--- a/sys/src/cmd/mkmany
+++ b/sys/src/cmd/mkmany
@@ -64,7 +64,7 @@ update:V:
 
 # [$OS].??* avoids file names like 9.h
 nuke:V:
-	rm -f *.[$OS] y.tab.? lex.yy.c y.debug y.output [$OS].??* *.acid $TARG
+	rm -f *.[$OS] y.tab.? lex.yy.c y.debug y.output [$OS].??* *.acid $TARG $CLEANFILES
 
 clean:V:
 	rm -f *.[$OS] *.a[$OS] y.tab.? lex.yy.c y.debug y.output [$OS].??* $TARG $CLEANFILES
diff --git a/sys/src/cmd/mkone b/sys/src/cmd/mkone
index a2c42e63f..62b750928 100644
--- a/sys/src/cmd/mkone
+++ b/sys/src/cmd/mkone
@@ -37,7 +37,7 @@ allall:V:
 		mk all
 
 nuke:V:
-	rm -f *.[$OS] [$OS].out y.tab.? lex.yy.c y.debug y.output *.acid $TARG
+	rm -f *.[$OS] [$OS].out y.tab.? lex.yy.c y.debug y.output *.acid $TARG $CLEANFILES
 
 clean:V:
 	rm -f *.[$OS] [$OS].out y.tab.? lex.yy.c y.debug y.output $TARG $CLEANFILES