diff --git a/nginx.tmpl b/nginx.tmpl
index 513587c..2c3686c 100644
--- a/nginx.tmpl
+++ b/nginx.tmpl
@@ -26,6 +26,8 @@
 {{- $_ := set $config "enable_debug_endpoint" ($globals.Env.DEBUG_ENDPOINT | default "false") }}
 {{- $_ := set $config "hsts" ($globals.Env.HSTS | default "max-age=31536000") }}
 {{- $_ := set $config "acme_http_challenge" ($globals.Env.ACME_HTTP_CHALLENGE_LOCATION | default "true") }}
+{{- $_ := set $config "enable_http2" ($globals.Env.ENABLE_HTTP2 | default "true") }}
+{{- $_ := set $config "enable_http3" ($globals.Env.ENABLE_HTTP3 | default "false") }}
 {{- $_ := set $globals "config" $config }}
 
 {{- $_ := set $globals "vhosts" (dict) }}
@@ -679,8 +681,8 @@ proxy_set_header Proxy "";
     {{- if (and $enable_http_on_missing_cert (not $cert_ok) (or (eq $https_method "nohttp") (eq $https_method "redirect"))) }}
         {{- $https_method = "noredirect" }}
     {{- end }}
-    {{- $http2_enabled := parseBool (or (first (keys (groupByLabel $vhost_containers "com.github.nginx-proxy.nginx-proxy.http2.enable"))) $globals.Env.ENABLE_HTTP2 "true")}}
-    {{- $http3_enabled := parseBool (or (first (keys (groupByLabel $vhost_containers "com.github.nginx-proxy.nginx-proxy.http3.enable"))) $globals.Env.ENABLE_HTTP3 "false")}}
+    {{- $http2_enabled := groupByLabel $vhost_containers "com.github.nginx-proxy.nginx-proxy.http2.enable" | keys | first | default $globals.config.enable_http2 | parseBool }}
+    {{- $http3_enabled := groupByLabel $vhost_containers "com.github.nginx-proxy.nginx-proxy.http3.enable" | keys | first | default $globals.config.enable_http3 | parseBool }}
     {{- $acme_http_challenge := groupByKeys $vhost_containers "Env.ACME_HTTP_CHALLENGE_LOCATION" | first | default $globals.config.acme_http_challenge }}
     {{- $acme_http_challenge_legacy := eq $acme_http_challenge "legacy" }}
     {{- $acme_http_challenge_enabled := false }}