diff --git a/docker-compose.cypress.yaml b/docker-compose.cypress.yaml
index 2494980..c80dc29 100644
--- a/docker-compose.cypress.yaml
+++ b/docker-compose.cypress.yaml
@@ -13,7 +13,7 @@ services:
 
     environment:
       - CYPRESS_baseUrl=${DDEV_PRIMARY_URL}
-      - DISPLAY
+      - DISPLAY=${DISPLAY:-host.docker.internal:0}
       - HOME=/root
 
     volumes: