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-rw-r--r--sys/src/cmd/lex/header.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/src/cmd/lex/header.c b/sys/src/cmd/lex/header.c
index a77c8873a..7c3914882 100644
--- a/sys/src/cmd/lex/header.c
+++ b/sys/src/cmd/lex/header.c
@@ -43,6 +43,8 @@ phead1(void)
if(nine) {
Bprint(&fout,
"int infd, outfd;\n"
+ "outfd = 1;\n"
+ "infd = 0;\n"
"\n"
"void\n"
"output(char c)\n"