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Diffstat (limited to 'src/modules/mc_att_control/mc_att_control_main.cpp')
-rw-r--r--src/modules/mc_att_control/mc_att_control_main.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/modules/mc_att_control/mc_att_control_main.cpp b/src/modules/mc_att_control/mc_att_control_main.cpp
index b8c143782..3a0dfe4c3 100644
--- a/src/modules/mc_att_control/mc_att_control_main.cpp
+++ b/src/modules/mc_att_control/mc_att_control_main.cpp
@@ -922,8 +922,9 @@ MulticopterAttitudeControl::start()
int mc_att_control_main(int argc, char *argv[])
{
- if (argc < 1)
+ if (argc < 2) {
errx(1, "usage: mc_att_control {start|stop|status}");
+ }
if (!strcmp(argv[1], "start")) {