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-rw-r--r--utils/isohybrid.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/utils/isohybrid.c b/utils/isohybrid.c
index 5b63b0c6..4e504b93 100644
--- a/utils/isohybrid.c
+++ b/utils/isohybrid.c
@@ -130,7 +130,7 @@ check_option(int argc, char *argv[])
};
opterr = mode = 0;
- while ((n = getopt_long(argc, argv, optstr, lopt, &ind)) != -1)
+ while ((n = getopt_long_only(argc, argv, optstr, lopt, &ind)) != -1)
{
switch (n)
{