diff --git a/grbl/gcode.c b/grbl/gcode.c
index 13ebbee..57e31e5 100644
--- a/grbl/gcode.c
+++ b/grbl/gcode.c
@@ -853,7 +853,7 @@ uint8_t gc_execute_line(char *line)
   if (gc_parser_flags & GC_PARSER_JOG_MOTION) {
     // Only distance and unit modal commands and G53 absolute override command are allowed.
     // NOTE: Feed rate word and axis word checks have already been performed in STEP 3.
-    if (command_words & ~(bit(MODAL_GROUP_G3) | bit(MODAL_GROUP_G6 | bit(MODAL_GROUP_G0))) ) { FAIL(STATUS_INVALID_JOG_COMMAND) };
+    if (command_words & ~(bit(MODAL_GROUP_G3) | bit(MODAL_GROUP_G6) | bit(MODAL_GROUP_G0)) ) { FAIL(STATUS_INVALID_JOG_COMMAND) };
     if (!(gc_block.non_modal_command == NON_MODAL_ABSOLUTE_OVERRIDE || gc_block.non_modal_command == NON_MODAL_NO_ACTION)) { FAIL(STATUS_INVALID_JOG_COMMAND); }
 
     // Initialize planner data to current spindle and coolant modal state.