diff --git a/tests/build.yml b/tests/build.yml
index ed5b75fe..3a5d8c5f 100644
--- a/tests/build.yml
+++ b/tests/build.yml
@@ -3,58 +3,58 @@ version: '3'
 services:
 
   front:
-    image: ${DOCKER_ORG:-mailu}/nginx:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}nginx:${VERSION:-local}
     build: ../core/nginx
 
   resolver:
-    image: ${DOCKER_ORG:-mailu}/unbound:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}unbound:${VERSION:-local}
     build: ../services/unbound
 
   imap:
-    image: ${DOCKER_ORG:-mailu}/dovecot:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}dovecot:${VERSION:-local}
     build: ../core/dovecot
 
   smtp:
-    image: ${DOCKER_ORG:-mailu}/postfix:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}postfix:${VERSION:-local}
     build: ../core/postfix
 
   antispam:
-    image: ${DOCKER_ORG:-mailu}/rspamd:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}rspamd:${VERSION:-local}
     build: ../services/rspamd
 
   antivirus:
-    image: ${DOCKER_ORG:-mailu}/clamav:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}clamav:${VERSION:-local}
     build: ../optional/clamav
 
   webdav:
-    image: ${DOCKER_ORG:-mailu}/radicale:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}radicale:${VERSION:-local}
     build: ../optional/radicale
 
   admin:
-    image: ${DOCKER_ORG:-mailu}/admin:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}admin:${VERSION:-local}
     build: ../core/admin
 
   roundcube:
-    image: ${DOCKER_ORG:-mailu}/roundcube:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}roundcube:${VERSION:-local}
     build: ../webmails/roundcube
 
   rainloop:
-    image: ${DOCKER_ORG:-mailu}/rainloop:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}rainloop:${VERSION:-local}
     build: ../webmails/rainloop
 
   fetchmail:
-    image: ${DOCKER_ORG:-mailu}/fetchmail:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}fetchmail:${VERSION:-local}
     build: ../services/fetchmail
 
   none:
-    image: ${DOCKER_ORG:-mailu}/none:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}none:${VERSION:-local}
     build: ../core/none
 
   docs:
-    image: ${DOCKER_ORG:-mailu}/docs:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}docs:${VERSION:-local}
     build: ../docs
 
   setup:
-    image: ${DOCKER_ORG:-mailu}/setup:${VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX}setup:${VERSION:-local}
     build: ../setup