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-rw-r--r--include/usage.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/usage.h b/include/usage.h
index 7e23de92d..f5bd96a47 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -88,7 +88,7 @@
" -A ARP answer mode, update your neighbours\n" \
" -c count Stop after sending count ARP request packets\n" \
" -w timeout Time to wait for ARP reply, in seconds\n" \
- " -i device Outgoing interface name, default is eth0\n" \
+ " -I device Outgoing interface name, default is eth0\n" \
" -s sender Set specific sender IP address\n" \
" target Target IP address of ARP request"