diff --git a/build.config.gki b/build.config.gki
index 44d4ed1bee1f..8a13ddd696ab 100644
--- a/build.config.gki
+++ b/build.config.gki
@@ -1,3 +1,6 @@
 DEFCONFIG=gki_defconfig
 POST_DEFCONFIG_CMDS="check_defconfig"
 
+if [ -n "${GKI_BUILD_CONFIG_FRAGMENT}" ]; then
+source ${GKI_BUILD_CONFIG_FRAGMENT}
+fi