diff --git a/jammy-amd64-tf-m-iar-build/build.sh b/jammy-amd64-tf-m-iar-build/build.sh
index 74bc559..1dab2b4 100755
--- a/jammy-amd64-tf-m-iar-build/build.sh
+++ b/jammy-amd64-tf-m-iar-build/build.sh
@@ -4,6 +4,7 @@
 
 IAR_BINARY=$(echo $@ | grep -o "IAR_PACKAGE=.*" | sed "s/^.*=//")
 IAR_PACKAGE=${IAR_BINARY:-bxarm-9.40.2.deb}
+IAR_ECR=${IAR_ECR:-local}
 
 trap cleanup_exit INT TERM EXIT
 
@@ -28,6 +29,6 @@
 # from s3://trustedfirmware-iar by build harness).
 cp ../$IAR_PACKAGE .
 
-image=ci-${ARCHITECTURE}-${PROJECT}-ubuntu:${DISTRIBUTION}-iar${DUCKER_SUFFIX}
+image=${IAR_ECR}:${DISTRIBUTION}-tf-m-iar
 docker build $@ --pull --tag=$image .
 echo $image > .docker-tag