diff --git a/utils/helm/speckle-preview-service/templates/deployment.yaml b/utils/helm/speckle-preview-service/templates/deployment.yaml
index 9de87319a..9018195c9 100644
--- a/utils/helm/speckle-preview-service/templates/deployment.yaml
+++ b/utils/helm/speckle-preview-service/templates/deployment.yaml
@@ -43,7 +43,7 @@ spec:
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           ports:
             - name: metrics
-              containerPort: {{ .Values.service.port }}
+              containerPort: {{ .Values.port }}
               protocol: TCP
           env:
             - name: HOST
diff --git a/utils/helm/speckle-preview-service/values.yaml b/utils/helm/speckle-preview-service/values.yaml
index b09cf4b6e..5618e5541 100644
--- a/utils/helm/speckle-preview-service/values.yaml
+++ b/utils/helm/speckle-preview-service/values.yaml
@@ -51,7 +51,8 @@ host: '0.0.0.0'
 
 ## @param port
 ## @descriptionStart
-## The port on which the preview service will listen for incoming requests.
+## The port on which the preview service container will listen for incoming requests.
+## This can differ from the service port, see service.port.
 ## @descriptionEnd
 port: '3001'