diff --git a/uCNC/src/interface/grbl_protocol.c b/uCNC/src/interface/grbl_protocol.c
index a111f9a46..e4082d0cd 100644
--- a/uCNC/src/interface/grbl_protocol.c
+++ b/uCNC/src/interface/grbl_protocol.c
@@ -734,7 +734,7 @@ void proto_gcode_modes(void)
 	proto_putc('M');
 	proto_itoa(modalgroups[10]);
 	proto_putc(' ');
-	proto_putc('M');
+	proto_putc('T');
 	proto_itoa(modalgroups[11]);
 	proto_putc(' ');
 	proto_putc('F');