diff --git a/keyboards/planck/keymaps/callum/keymap.c b/keyboards/planck/keymaps/callum/keymap.c
index 411523125..c89b485a4 100644
--- a/keyboards/planck/keymaps/callum/keymap.c
+++ b/keyboards/planck/keymaps/callum/keymap.c
@@ -53,9 +53,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * ,-----------------------------------------------------------------------------------.
  * |  Esc |      | Cmd-L|  Up  | Cmd-R|      |      | Cmd-L|  Up  | Cmd-R|      |  Esc |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |  Del |      | Left | Down | Right|      |      | Left | Down | Right|      |  Del |
+ * |  Del | Caps | Left | Down | Right|      |      | Left | Down | Right| Caps |  Del |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |      |      |      | Pg Up| Pg Dn| Above|      | Pg Dn| Pg Up|      | Caps |      |
+ * |      |      |      | Pg Up| Pg Dn| Above|      | Pg Dn| Pg Up|      |      |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |      |      |      |      | Below|      |      |      |      |      |      |
  * `-----------------------------------------------------------------------------------'
@@ -109,7 +109,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |  F11 |  F12 |  F13 |  F14 |  F15 |  F16 |  F17 |  F18 |  F19 |  F20 | Vol- |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |      |  F21 |  F22 |  F23 |  F24 |      |      |      |      |      |      |      |
+ * |      |  F21 |  F22 |  F23 |  F24 |      |      | Lock |      |      |      |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |      |      |      | Prev | Mute | Play | Next |      |      |      |      |
  * `-----------------------------------------------------------------------------------'
@@ -117,7 +117,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [_FUNC] = {
   {RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  S(LALT(KC_VOLU))},
   {XXXXXXX, KC_F11,  KC_F12,  KC_F13,  KC_F14,  KC_F15,  KC_F16,  KC_F17,  KC_F18,  KC_F19,  KC_F20,  S(LALT(KC_VOLD))},
-  {_______, KC_F21,  KC_F22,  KC_F23,  KC_F24,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______},
+  {_______, KC_F21,  KC_F22,  KC_F23,  KC_F24,  XXXXXXX, XXXXXXX, S(LCTL(KC_POWER)), XXXXXXX, XXXXXXX, XXXXXXX, _______},
   {_______, _______, _______, _______, KC_MPRV, KC_MUTE, KC_MPLY, KC_MNXT, _______, _______, _______, _______}
 }
 
diff --git a/keyboards/planck/keymaps/callum/readme.md b/keyboards/planck/keymaps/callum/readme.md
index b5997cd5a..0baeba46d 100644
--- a/keyboards/planck/keymaps/callum/readme.md
+++ b/keyboards/planck/keymaps/callum/readme.md
@@ -25,9 +25,9 @@ We have five layers. A `BASE` layer, in colemak; a `MOVE` layer, with an arrow c
  * ,-----------------------------------------------------------------------------------.
  * |  Esc |      | Cmd-L|  Up  | Cmd-R|      |      | Cmd-L|  Up  | Cmd-R|      |  Esc |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |  Del |      | Left | Down | Right|      |      | Left | Down | Right|      |  Del |
+ * |  Del | Caps | Left | Down | Right|      |      | Left | Down | Right| Caps |  Del |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |      |      |      | Pg Up| Pg Dn| Above|      | Pg Dn| Pg Up|      | Caps |      |
+ * |      |      |      | Pg Up| Pg Dn| Above|      | Pg Dn| Pg Up|      |      |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |      |      |      |      | Below|      |      |      |      |      |      |
  * `-----------------------------------------------------------------------------------'
@@ -63,7 +63,7 @@ We have five layers. A `BASE` layer, in colemak; a `MOVE` layer, with an arrow c
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |  F11 |  F12 |  F13 |  F14 |  F15 |  F16 |  F17 |  F18 |  F19 |  F20 | Vol- |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |      |  F21 |  F22 |  F23 |  F24 |      |      |      |      |      |      |      |
+ * |      |  F21 |  F22 |  F23 |  F24 |      |      | Lock |      |      |      |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |      |      |      | Prev | Mute | Play | Next |      |      |      |      |
  * `-----------------------------------------------------------------------------------'