diff --git a/core/input/input_event.cpp b/core/input/input_event.cpp
index c2a9d30fff..1d2b5f19ee 100644
--- a/core/input/input_event.cpp
+++ b/core/input/input_event.cpp
@@ -864,6 +864,8 @@ void InputEventMouseMotion::_bind_methods() {
 ///////////////////////////////////
 
 void InputEventJoypadMotion::set_axis(JoyAxis p_axis) {
+	ERR_FAIL_INDEX(p_axis, JOY_AXIS_MAX);
+
 	axis = p_axis;
 	emit_changed();
 }