diff --git a/overlays/minipitft114-overlay.dts b/overlays/minipitft114-overlay.dts
index b05277c..1ddb4f3 100644
--- a/overlays/minipitft114-overlay.dts
+++ b/overlays/minipitft114-overlay.dts
@@ -51,6 +51,7 @@
                                 rotate = <270>;
                                 width = <135>;
                                 height = <240>;
+                                txbuflen = <32768>;
                                 buswidth = <8>;
                                 dc-gpios = <&gpio 25 0>;
                                 led-gpios = <&gpio 26 1>;
@@ -59,7 +60,6 @@
                 };
         };
 
-
         __overrides__ {
                 speed =   <&pitft>,"spi-max-frequency:0";
                 rotate =  <&pitft>,"rotate:0";
diff --git a/overlays/minipitft13-overlay.dts b/overlays/minipitft13-overlay.dts
index 46c43e2..20b1cdd 100644
--- a/overlays/minipitft13-overlay.dts
+++ b/overlays/minipitft13-overlay.dts
@@ -51,6 +51,7 @@
                                 rotate = <0>;
                                 width = <240>;
                                 height = <240>;
+                                txbuflen = <32768>;
                                 buswidth = <8>;
                                 dc-gpios = <&gpio 25 0>;
                                 led-gpios = <&gpio 26 1>;
diff --git a/overlays/st7789v_240x320-overlay.dts b/overlays/st7789v_240x320-overlay.dts
index d34d08f..9f89971 100644
--- a/overlays/st7789v_240x320-overlay.dts
+++ b/overlays/st7789v_240x320-overlay.dts
@@ -51,6 +51,7 @@
                                 rotate = <0>;
                                 width = <240>;
                                 height = <320>;
+                                txbuflen = <32768>;
                                 buswidth = <8>;
                                 dc-gpios = <&gpio 25 0>;
                                 led-gpios = <&gpio 12 1>;