diff --git a/src/mkhdr b/src/mkhdr
index 2bb9ec0f..8ec8e838 100644
--- a/src/mkhdr
+++ b/src/mkhdr
@@ -22,7 +22,7 @@ CC=9c
 LD=9l
 AS=9a
 AR=9ar
-INSTALL=install -c
+INSTALL=install
 CFLAGS=
 LDFLAGS=
 AFLAGS=
diff --git a/src/mkmk.sh b/src/mkmk.sh
index b2ffe02c..0115d068 100644
--- a/src/mkmk.sh
+++ b/src/mkmk.sh
@@ -1,3 +1,4 @@
+# AUTOMATICALLY GENERATED - DO NOT EDIT
 cd lib9
 echo cd `pwd`
 9c  _exits.c
@@ -204,5 +205,5 @@ echo cd `pwd`
 9c  word.c
 9c  unix.c
 9l -o o.mk arc.o archive.o bufblock.o env.o file.o graph.o job.o lex.o main.o match.o mk.o parse.o recipe.o rc.o rule.o run.o sh.o shell.o shprint.o symtab.o var.o varsub.o word.o unix.o 
-install -c o.mk $PLAN9/bin/mk
+install o.mk $PLAN9/bin/mk
 cd ..