diff --git a/meta-aspeed/conf/machine/include/ast2600.inc b/meta-aspeed/conf/machine/include/ast2600.inc
index fff5465..1e5e1f8 100644
--- a/meta-aspeed/conf/machine/include/ast2600.inc
+++ b/meta-aspeed/conf/machine/include/ast2600.inc
@@ -1,4 +1,9 @@
 SOC_FAMILY = "aspeed-g6"
+
+# Enable SPL signing by default
+SOCSEC_SIGN_ENABLE ?= "1"
+SOCSEC_SIGN_SOC ?= "2600"
+
 include conf/machine/include/soc-family.inc
 require conf/machine/include/aspeed.inc
 include conf/machine/include/arm/arch-armv7a.inc