diff --git a/arch/arm/dts/imx8mm-u-boot.dtsi b/arch/arm/dts/imx8mm-u-boot.dtsi
index 3ea03a9..9f66cdb 100644
--- a/arch/arm/dts/imx8mm-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-u-boot.dtsi
@@ -109,7 +109,7 @@
 
 					atf-blob {
 						filename = "bl31.bin";
-						type = "blob-ext";
+						type = "atf-bl31";
 					};
 				};