diff --git a/src/main.zig b/src/main.zig
index 8b8a8b6..a7c4175 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -238,7 +238,7 @@ export fn chuni_io_jvs_poll(opbtn: ?[*]u8, beams: ?[*]u8) void {
     if(cfg.?.chusan == 1 and builtin.cpu.arch != .x86_64) return;
     if(opbtn == null or beams == null) return;
     if(GetAsyncKeyState(cfg.?.test_key) != 0 or (usb_in.?[3] & (1 << 7)) != 0) opbtn.?.* |= (1 << 0);
-    if(GetAsyncKeyState(cfg.?.test_key) != 0 or (usb_in.?[3] & (1 << 6)) != 0) opbtn.?.* |= (1 << 1);
+    if(GetAsyncKeyState(cfg.?.serv_key) != 0 or (usb_in.?[3] & (1 << 6)) != 0) opbtn.?.* |= (1 << 1);
     beams.?.* |= usb_in.?[3] & 0b111111;
 }