diff --git a/layouts/partials/meta/google-analytics-async.html b/layouts/partials/meta/google-analytics-async.html
index 79d93af..f8224fb 100644
--- a/layouts/partials/meta/google-analytics-async.html
+++ b/layouts/partials/meta/google-analytics-async.html
@@ -1,4 +1,4 @@
-{{- if .Site.IsServer -}}
+{{- if hugo.IsServer -}}
 <!-- only production, not generate Google Analytics with Hugo’s built-in server -->
 {{- else -}}
 {{- with .Site.Params.google_analytics_id -}}
diff --git a/layouts/partials/meta/google-site-verification.html b/layouts/partials/meta/google-site-verification.html
index 5f5d0e5..7e14e2e 100644
--- a/layouts/partials/meta/google-site-verification.html
+++ b/layouts/partials/meta/google-site-verification.html
@@ -1,4 +1,4 @@
-{{- if .Site.IsServer -}}
+{{- if hugo.IsServer -}}
 <!-- only production, not generate google-site-verification with Hugo’s built-in server -->
 {{- else -}}
 {{- if .IsHome -}}
diff --git a/layouts/partials/meta/tag-manager.html b/layouts/partials/meta/tag-manager.html
index d527032..2209e2a 100644
--- a/layouts/partials/meta/tag-manager.html
+++ b/layouts/partials/meta/tag-manager.html
@@ -1,4 +1,4 @@
-{{- if .Site.IsServer -}}
+{{- if hugo.IsServer -}}
 <!-- only production, not generate Tag Manager with Hugo’s built-in server -->
 {{- else -}}
 {{- with .Site.Params.tag_manager_container_id -}}
diff --git a/layouts/partials/prepend-body.html b/layouts/partials/prepend-body.html
index e3c7eac..3cebec8 100644
--- a/layouts/partials/prepend-body.html
+++ b/layouts/partials/prepend-body.html
@@ -1,4 +1,4 @@
-{{ if .Site.IsServer }}
+{{ if hugo.IsServer }}
 <!-- only production, not generate Google Analytics with Hugo’s built-in server -->
 {{ else }}
 {{- with .Site.Params.tag_manager_container_id -}}