diff --git a/.github/workflows/lint-test.yaml b/.github/workflows/lint-test.yaml
index a0e9384..c9b369d 100644
--- a/.github/workflows/lint-test.yaml
+++ b/.github/workflows/lint-test.yaml
@@ -68,10 +68,14 @@ jobs:
       - name: Run chart-testing (diff)
         if: steps.list-changed.outputs.changed == 'true'
         run: |
-          changed_list=$(echo $changed_list)
           for chart in $changed_list; do
-            helm install $chart oci://ghcr.io/${{ github.repository_owner }}/charts/$chart --create-namespace --namespace $chart --wait
-            helm diff upgrade $chart charts/$chart \
+            echo "installing chart: $chart"
+            chart="${chart#*/}"
+
+            helm install --create-namespace --namespace "${chart}" \
+              "${chart}" "oci://ghcr.io/${{ github.repository_owner }}/charts/$chart"
+
+            helm diff upgrade "${chart}" "charts/${chart}" \
               --namespace $chart \
               --suppress=CustomResourceDefinition \
               --normalize-manifests \
diff --git a/charts/github-actions-runner/templates/config.yaml b/charts/github-actions-runner/templates/config.yaml
index d6ec2f5..6d96874 100644
--- a/charts/github-actions-runner/templates/config.yaml
+++ b/charts/github-actions-runner/templates/config.yaml
@@ -6,4 +6,4 @@ metadata:
   labels:
     {{- include "github-actions-runner.labels" . | nindent 4 }}
 data:
-  {{ .Files.AsConfig "files/*.sh" | nindent 2 }}
+  {{ (.Files.Glob "files/*.sh").AsConfig | nindent 2 }}
diff --git a/charts/github-actions-runner/templates/deployment.yaml b/charts/github-actions-runner/templates/deployment.yaml
index 238a908..82e0625 100644
--- a/charts/github-actions-runner/templates/deployment.yaml
+++ b/charts/github-actions-runner/templates/deployment.yaml
@@ -45,7 +45,7 @@ spec:
             - "service"
           env:
           {{- range $key, $val := .Values.env }}
-            {{- if ne (eq $val "") }}
+            {{- if not (eq (print $val) "") }}
             - name: {{ $key }}
               value: {{ $val | quote  }}
             {{- end }}