diff --git a/src/backend/impress/configuration/theme/default.json b/src/backend/impress/configuration/theme/default.json
index 578e5cc07..83d41214d 100644
--- a/src/backend/impress/configuration/theme/default.json
+++ b/src/backend/impress/configuration/theme/default.json
@@ -4,7 +4,7 @@
       "logo": {
         "src": "/assets/icon-docs.svg",
         "alt": "Docs Logo",
-        "style": { "width": "54px", "height": "auto" },
+        "style": { "width": "54", "height": "auto" },
         "withTitle": true
       },
       "externalLinks": [
diff --git a/src/frontend/apps/impress/next.config.js b/src/frontend/apps/impress/next.config.js
index e836341cc..f99905954 100644
--- a/src/frontend/apps/impress/next.config.js
+++ b/src/frontend/apps/impress/next.config.js
@@ -6,6 +6,7 @@ const buildId = crypto.randomBytes(256).toString('hex').slice(0, 8);
 
 /** @type {import('next').NextConfig} */
 const nextConfig = {
+  allowedDevOrigins: ['docs.127.0.0.1.nip.io'],
   output: 'export',
   trailingSlash: true,
   images: {
diff --git a/src/helm/env.d/dev/configuration/theme/demo.json b/src/helm/env.d/dev/configuration/theme/demo.json
index 76d037813..27adf0f82 100644
--- a/src/helm/env.d/dev/configuration/theme/demo.json
+++ b/src/helm/env.d/dev/configuration/theme/demo.json
@@ -11,7 +11,7 @@
     "default": {
       "logo": {
         "src": "/assets/icon-docs.svg",
-        "width": "54px",
+        "width": "54",
         "alt": "Docs Logo",
         "withTitle": true
       },