1 files changed, 4 insertions, 0 deletions
diff --git a/src/userdb/userdbctl.c b/src/userdb/userdbctl.c
index eab0c3af15..67675b4b7f 100644
--- a/src/userdb/userdbctl.c
+++ b/src/userdb/userdbctl.c
@@ -1150,6 +1150,10 @@ static int parse_argv(int argc, char *argv[]) {
                 arg_services = l;
         }
 
+        /* Resetting to 0 forces the invocation of an internal initialization routine of getopt_long()
+         * that checks for GNU extensions in optstring ('-' or '+' at the beginning). */
+        optind = 0;
+
         for (;;) {
                 int c;