diff --git a/src/arm/am5729-beagleboneai.dts b/src/arm/am5729-beagleboneai.dts
index 2c10af14171f41430929400839e07b0417a76fa2..eeb81909bb9be844d4b6d77e1858fc0f1e83b6cd 100644
--- a/src/arm/am5729-beagleboneai.dts
+++ b/src/arm/am5729-beagleboneai.dts
@@ -1034,14 +1034,6 @@
 	status = "okay";
 };
 
-&mailbox5 {
-	status = "okay";
-};
-
-&mailbox6 {
-	status = "okay";
-};
-
 &mailbox7 {
 	status = "okay";
 };