diff --git a/platformio.ini b/platformio.ini
index c01d4f15..8cd732c9 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -614,7 +614,7 @@ build_flags_max =
   -D ARDUINO_USB_CDC_ON_BOOT=0 ; needed for arduino-esp32 >=2.0.4 ewowi to softhack: move to build_flags_min?
   -D WLED_USE_MY_CONFIG ; include custom my_config.h ewowi to softhack: redundant as also in build_flags_min?
   -D USERMOD_DALLASTEMPERATURE
-  -D USE_ALT_DISPlAY ; new versions of USERMOD_FOUR_LINE_DISPLAY and USERMOD_ROTARY_ENCODER_UI
+  -D USE_ALT_DISPLAY ; new versions of USERMOD_FOUR_LINE_DISPLAY and USERMOD_ROTARY_ENCODER_UI
   -D USERMOD_FOUR_LINE_DISPLAY
   -D USERMOD_ROTARY_ENCODER_UI
   -D USERMOD_AUTO_SAVE
diff --git a/usermods/usermod_v2_four_line_display_ALT/readme.md b/usermods/usermod_v2_four_line_display_ALT/readme.md
index 67cde353..7b466c01 100644
--- a/usermods/usermod_v2_four_line_display_ALT/readme.md
+++ b/usermods/usermod_v2_four_line_display_ALT/readme.md
@@ -31,8 +31,8 @@ Also shows if the timer is enabled
 ## Installation
 
 Please refer to the original `usermod_v2_rotary_encoder_ui` readme for the main instructions
-Then to activate this alternative usermod add `#define USE_ALT_DISPlAY` to the `usermods_list.cpp` file,
-                                        or add `-D USE_ALT_DISPlAY` to the original `platformio_override.ini.sample` file
+Then to activate this alternative usermod add `#define USE_ALT_DISPLAY` to the `usermods_list.cpp` file,
+                                        or add `-D USE_ALT_DISPLAY` to the original `platformio_override.ini.sample` file
 
 
 ### PlatformIO requirements
diff --git a/usermods/usermod_v2_rotary_encoder_ui_ALT/readme.md b/usermods/usermod_v2_rotary_encoder_ui_ALT/readme.md
index a140f25b..f5ebe0eb 100644
--- a/usermods/usermod_v2_rotary_encoder_ui_ALT/readme.md
+++ b/usermods/usermod_v2_rotary_encoder_ui_ALT/readme.md
@@ -31,8 +31,8 @@ Also shows if the timer is enabled
 ## Installation
 
 Please refer to the original `usermod_v2_rotary_encoder_ui` readme for the main instructions
-Then to activate this alternative usermod add `#define USE_ALT_DISPlAY` to the `usermods_list.cpp` file,
-                                        or add `-D USE_ALT_DISPlAY` to the original `platformio_override.ini.sample` file
+Then to activate this alternative usermod add `#define USE_ALT_DISPLAY` to the `usermods_list.cpp` file,
+                                        or add `-D USE_ALT_DISPLAY` to the original `platformio_override.ini.sample` file
 
 
 ### PlatformIO requirements
diff --git a/wled00/usermods_list.cpp b/wled00/usermods_list.cpp
index cffadf7a..56195aec 100644
--- a/wled00/usermods_list.cpp
+++ b/wled00/usermods_list.cpp
@@ -53,7 +53,7 @@
 #endif
 
 #ifdef USERMOD_FOUR_LINE_DISPLAY
-  #ifdef USE_ALT_DISPlAY
+  #ifdef USE_ALT_DISPLAY
     #include "../usermods/usermod_v2_four_line_display_ALT/usermod_v2_four_line_display_ALT.h"
   #else 
     #include "../usermods/usermod_v2_four_line_display/usermod_v2_four_line_display.h"
@@ -61,7 +61,7 @@
 #endif
 
 #ifdef USERMOD_ROTARY_ENCODER_UI
-  #ifdef USE_ALT_DISPlAY
+  #ifdef USE_ALT_DISPLAY
     #include "../usermods/usermod_v2_rotary_encoder_ui_ALT/usermod_v2_rotary_encoder_ui_ALT.h"
   #else
     #include "../usermods/usermod_v2_rotary_encoder_ui/usermod_v2_rotary_encoder_ui.h"