diff --git a/acs/builder.sh b/acs/builder.sh
index 716daab..cd8c567 100755
--- a/acs/builder.sh
+++ b/acs/builder.sh
@@ -21,7 +21,7 @@
 
 cd ${WORKSPACE}/hafnium
 echo "Building Hafnium."
-make PROJECT=reference
+make PLATFORM=secure_aem_v8a_fvp_vhe
 
 # Build TF-A
 cd ${WORKSPACE}/trusted-firmware-a