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-rw-r--r--src/vu-arithm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vu-arithm.c b/src/vu-arithm.c
index b4c09cc..ce85287 100644
--- a/src/vu-arithm.c
+++ b/src/vu-arithm.c
@@ -60,7 +60,7 @@ main(int argc, char *argv[])
struct stream left, right;
process_func process = NULL;
- ENOFLAGS(argc != 2);
+ ENOFLAGS(argc != 1);
left.file = "<stdin>";
left.fd = STDIN_FILENO;