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-rw-r--r--plugins/check_http.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/plugins/check_http.c b/plugins/check_http.c
index 52040281..56e87bbf 100644
--- a/plugins/check_http.c
+++ b/plugins/check_http.c
@@ -207,7 +207,7 @@ process_arguments (int argc, char **argv)
{"port", required_argument, 0, 'p'},
{"authorization", required_argument, 0, 'a'},
{"proxy_authorization", required_argument, 0, 'b'},
- {"header_string", required_argument, 0, 'd'},
+ {"header-string", required_argument, 0, 'd'},
{"string", required_argument, 0, 's'},
{"expect", required_argument, 0, 'e'},
{"regex", required_argument, 0, 'r'},