diff --git a/tests/fulltest.sh b/tests/fulltest.sh
index 5c29581..f60a382 100755
--- a/tests/fulltest.sh
+++ b/tests/fulltest.sh
@@ -46,7 +46,9 @@ rm -f ./lastpage.txt
 #fi
 
 # replace FROM line in IdP Dockerfile to newly-built local image
-sed -i "s*FROM i2incommon/shib-idp:latest*FROM shib-idp_4.2.1_20221101_rocky8_multiarch_dev*g" ../test-compose/idp/Dockerfile
+echo "Setting test suite to base from new IdP image: ${imagename}_${tag}"
+#sed -i "s*FROM i2incommon/shib-idp:latest*FROM shib-idp_4.2.1_20221101_rocky8_multiarch_dev*g" ../test-compose/idp/Dockerfile
+sed -i "s*FROM i2incommon/shib-idp:latest*FROM ${imagename}_${tag}*g" ../test-compose/idp/Dockerfile
 
 echo "Attempting full-cycle test..."
 #webisoget -verbose -out ./lastpage.txt -formfile ./sptest.login -url https://sptest.example.edu:8443/secure/index.php