diff --git a/tox.ini b/tox.ini
index d44c7a279ce..43b82c11f0c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -853,7 +853,7 @@ commands =
 [testenv:syft.test.helm]
 description = Test Helm Chart for Kubernetes
 changedir = {toxinidir}
-passenv=HOME,USER,EXTERNAL_REGISTRY,EXTERNAL_REGISTRY_USERNAME,EXTERNAL_REGISTRY_PASSWORD
+passenv=HOME,USER,EXTERNAL_REGISTRY_USERNAME,EXTERNAL_REGISTRY_PASSWORD
 allowlist_externals =
     grep
     sleep
@@ -866,6 +866,7 @@ setenv =
     NODE_URL = {env:NODE_URL:http://localhost}
     EXCLUDE_NOTEBOOKS = {env:EXCLUDE_NOTEBOOKS:not 10-container-images.ipynb}
     SYFT_VERSION = {env:SYFT_VERSION:local}
+    EXTERNAL_REGISTRY = {env:EXTERNAL_REGISTRY:k3d-registry.localhost:5800}
 commands =
     bash -c "echo Running with ORCHESTRA_DEPLOYMENT_TYPE=$ORCHESTRA_DEPLOYMENT_TYPE NODE_PORT=$NODE_PORT NODE_URL=$NODE_URL \
     Excluding notebooks: $EXCLUDE_NOTEBOOKS SYFT_VERSION=$SYFT_VERSION; date"