diff --git a/robot.cpp b/robot.cpp
index fda3a6d..b41a667 100644
--- a/robot.cpp
+++ b/robot.cpp
@@ -108,15 +108,6 @@ static void emulate_robot(robot_code &code, robot_regs& r, char robot_id) {
             code.PC++;
             break;
 
-        case ROBOT_CMD_SET_LOCK_ZONE_code:
-            if (robot_id == 1) {
-                robot1_lock_zone = cmd_arg;
-            } else {
-                robot2_lock_zone = cmd_arg;
-            }
-            code.PC += 2;
-            break;
-
         case ROBOT_CMD_CORRECT_AXIS_code:
             if (cmd_arg == ROBOT_AXIS_X) {
                 std::cout << "robot " << robot_id << " correct axis X..." << std::endl;
diff --git a/scheduler.c b/scheduler.c
index fe923e7..4ce4a36 100644
--- a/scheduler.c
+++ b/scheduler.c
@@ -387,10 +387,6 @@ void debug_print_robot1_code() {
                 printf("    set barrel timer %d secs\n", cmd_arg);
                 break;
 
-            case ROBOT_CMD_SET_LOCK_ZONE_code:
-                printf("    set lock zone %d\n", cmd_arg);
-                break;
-
             case ROBOT_CMD_CORRECT_AXIS_code:
                 if (cmd_arg == ROBOT_AXIS_X) {
                     printf("    correct axis: X\n");