diff --git a/gcode.c b/gcode.c
index aa16d0c..7b31552 100644
--- a/gcode.c
+++ b/gcode.c
@@ -371,7 +371,11 @@ uint8_t gc_execute_line(char *line)
           FAIL(STATUS_INVALID_STATEMENT);
           break;
         }
+        #ifdef USE_LINE_NUMBERS
         if(mc_probe_cycle(target, (gc.inverse_feed_rate_mode) ? inverse_feed_rate : gc.feed_rate, gc.inverse_feed_rate_mode, line_number)){
+        #else
+        if(mc_probe_cycle(target, (gc.inverse_feed_rate_mode) ? inverse_feed_rate : gc.feed_rate, gc.inverse_feed_rate_mode)){
+        #endif
           FAIL(STATUS_PROBE_ERROR);
         }
         axis_words = 0;
@@ -381,7 +385,11 @@ uint8_t gc_execute_line(char *line)
           FAIL(STATUS_INVALID_STATEMENT);
           break;
         }
+        #ifdef USE_LINE_NUMBERS
         mc_probe_cycle(target, (gc.inverse_feed_rate_mode) ? inverse_feed_rate : gc.feed_rate, gc.inverse_feed_rate_mode, line_number);
+        #else
+        mc_probe_cycle(target, (gc.inverse_feed_rate_mode) ? inverse_feed_rate : gc.feed_rate, gc.inverse_feed_rate_mode);
+        #endif
         axis_words = 0;
       break;   
     case NON_MODAL_SET_HOME_0: case NON_MODAL_SET_HOME_1:
diff --git a/motion_control.c b/motion_control.c
index cd79d97..00d2423 100644
--- a/motion_control.c
+++ b/motion_control.c
@@ -269,7 +269,12 @@ void mc_homing_cycle()
   limits_init();
 }
 
+
+#ifdef USE_LINE_NUMBERS
 uint8_t mc_probe_cycle(float *t, float feed_rate, uint8_t invert_feed_rate, int32_t line_number)
+#else
+uint8_t mc_probe_cycle(float *t, float feed_rate, uint8_t invert_feed_rate)
+#endif
 {
   protocol_buffer_synchronize(); //finish all queued commands
 
@@ -290,7 +295,12 @@ uint8_t mc_probe_cycle(float *t, float feed_rate, uint8_t invert_feed_rate, int3
   // An empty buffer is needed because we need to enable the probe pin along the same move that we're about to execute.
   
   sys.state = STATE_CYCLE;
+
+  #ifdef USE_LINE_NUMBERS
   plan_buffer_line(target, feed_rate, invert_feed_rate, line_number); // Bypass mc_line(). Directly plan homing motion.
+  #else
+  plan_buffer_line(target, feed_rate, invert_feed_rate); // Bypass mc_line(). Directly plan homing motion.
+  #endif
   st_prep_buffer(); // Prep and fill segment buffer from newly planned block.
   st_wake_up(); // Initiate motion
   
@@ -341,7 +351,11 @@ uint8_t mc_probe_cycle(float *t, float feed_rate, uint8_t invert_feed_rate, int3
 
   //report_realtime_status(); //debug
 
-  plan_buffer_line(target, feed_rate, invert_feed_rate, line_number); // Bypass mc_line(). Directly plan motion.
+  #ifdef USE_LINE_NUMBERS
+  plan_buffer_line(target, feed_rate, invert_feed_rate, line_number); // Bypass mc_line(). Directly plan homing motion.
+  #else
+  plan_buffer_line(target, feed_rate, invert_feed_rate); // Bypass mc_line(). Directly plan homing motion.
+  #endif
   st_prep_buffer(); // Prep and fill segment buffer from newly planned block.
   st_wake_up(); // Initiate motion
 
diff --git a/motion_control.h b/motion_control.h
index f8af924..4956487 100644
--- a/motion_control.h
+++ b/motion_control.h
@@ -54,7 +54,11 @@ void mc_homing_cycle();
 // Perform tool length probe cycle. Requires probe switch.
 // Returns STATUS_OK in all cases except when the motion is completed without the probe being triggered.
 // In that case, it returns a STATUS_PROBE_ERROR
+#ifdef USE_LINE_NUMBERS
 uint8_t mc_probe_cycle(float *target, float feed_rate, uint8_t invert_feed_rate, int32_t line_number);
+#else
+uint8_t mc_probe_cycle(float *target, float feed_rate, uint8_t invert_feed_rate);
+#endif
 
 // Performs system reset. If in motion state, kills all motion and sets system alarm.
 void mc_reset();