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-rw-r--r--plugins/check_mysql.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/plugins/check_mysql.c b/plugins/check_mysql.c
index 5c7bcb0d..6d6f19a9 100644
--- a/plugins/check_mysql.c
+++ b/plugins/check_mysql.c
@@ -207,7 +207,7 @@ process_arguments (int argc, char **argv)
if (strlen(db) == 0 && argc > c)
db = argv[c++];
- if (is_intnonneg (argv[c]))
+ if (is_intnonneg (argv[c]) && argc > c)
db_port = atoi (argv[c++]);
return validate_arguments ();