diff --git a/Marlin/src/gcode/feature/advance/M900.cpp b/Marlin/src/gcode/feature/advance/M900.cpp
index e9d5360a979881b01397f0cc49e7d2841a337b32..dd286e0475c8d4c4696bb3af977060e50e68be03 100644
--- a/Marlin/src/gcode/feature/advance/M900.cpp
+++ b/Marlin/src/gcode/feature/advance/M900.cpp
@@ -29,9 +29,9 @@
 #include "../../../module/stepper.h"
 
 /**
- * M900: Set and/or Get advance K factor
+ * M900: Get or Set Linear Advance K-factor
  *
- *  K<factor>                  Set advance K factor
+ *  K<factor>   Set advance K factor
  */
 void GcodeSuite::M900() {
   if (parser.seenval('K')) {
diff --git a/Marlin/src/gcode/gcode.h b/Marlin/src/gcode/gcode.h
index ef2d1dbfa28c941cbb3aaaac0a388dab1ef677ce..3d1c84ff79f0a8889967c929989c1445848d193b 100644
--- a/Marlin/src/gcode/gcode.h
+++ b/Marlin/src/gcode/gcode.h
@@ -216,7 +216,7 @@
  * M867 - Enable/disable or toggle error correction for position encoder modules.
  * M868 - Report or set position encoder module error correction threshold.
  * M869 - Report position encoder module error.
- * M900 - Get and/or Set advance K factor and WH/D ratio. (Requires LIN_ADVANCE)
+ * M900 - Get or Set Linear Advance K-factor. (Requires LIN_ADVANCE)
  * M906 - Set or get motor current in milliamps using axis codes X, Y, Z, E. Report values if no axis codes given. (Requires HAVE_TMC2130)
  * M907 - Set digital trimpot motor current using axis codes. (Requires a board with digital trimpots)
  * M908 - Control digital trimpot directly. (Requires DAC_STEPPER_CURRENT or DIGIPOTSS_PIN)