diff --git a/CHANGELOG.md b/CHANGELOG.md
index d389030cd775..0e2e73aa7d02 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ All notable changes to this project will be documented in this file.
 
 ### Fixed
 - ESP32 slow response when using UDP as in emulation (#21470)
+- uDisplay Parallel display on Core3
 
 ### Removed
 
diff --git a/lib/lib_display/UDisplay/uDisplay.cpp b/lib/lib_display/UDisplay/uDisplay.cpp
index 3b4ed044945b..e24b0ab421cb 100755
--- a/lib/lib_display/UDisplay/uDisplay.cpp
+++ b/lib/lib_display/UDisplay/uDisplay.cpp
@@ -1289,6 +1289,7 @@ Renderer *uDisplay::Init(void) {
     esp_lcd_i80_bus_config_t bus_config = {
         .dc_gpio_num = par_rs,
         .wr_gpio_num = par_wr,
+        .clk_src = LCD_CLK_SRC_DEFAULT,
         .bus_width = bus_width,
         .max_transfer_bytes = 32768
     };