diff --git a/GDI4.md b/GDI4.md
index f72b2e9b..f15e39f6 100644
--- a/GDI4.md
+++ b/GDI4.md
@@ -14,7 +14,7 @@
 * open and short circuit software PENDING
 * build around [MC33PT2001](https://www.nxp.com/docs/en/data-sheet/MC33PT2001_SDS.pdf) chip
 * TC2030 and 0.1" SWD pinout
-* UART
+* UART 115200 baud
 
 ![x](Hardware/GDI/rusefi-gdi4-rev-a.jpg)