diff --git a/docs/.gitlab-ci.yml b/docs/.gitlab-ci.yml
index fa012a8a..6a26b8f7 100644
--- a/docs/.gitlab-ci.yml
+++ b/docs/.gitlab-ci.yml
@@ -40,7 +40,7 @@ build-production:
     name: production
     url: https://docs.castopod.org/
   script:
-    - pnpm run build --outDir=./dist/$CI_COMMIT_REF_SLUG --base=$CI_COMMIT_REF_SLUG
+    - BASE=/$CI_COMMIT_REF_SLUG pnpm run build --outDir=./dist/$CI_COMMIT_REF_SLUG --base=/$CI_COMMIT_REF_SLUG
   artifacts:
     paths:
       - docs/dist/$CI_COMMIT_REF_SLUG
diff --git a/docs/astro.config.mjs b/docs/astro.config.mjs
index 2440a5b9..d1af53ba 100644
--- a/docs/astro.config.mjs
+++ b/docs/astro.config.mjs
@@ -4,11 +4,12 @@ import starlight from "@astrojs/starlight";
 import tailwind from "@astrojs/tailwind";
 
 const site = "https://docs.castopod.org/";
+const base = process.env.BASE ?? "/docs";
 
 // https://astro.build/config
 export default defineConfig({
   site,
-  base: "/docs",
+  base,
   integrations: [
     starlight({
       title: "Castopod Docs",
@@ -37,7 +38,7 @@ export default defineConfig({
           tag: "meta",
           attrs: {
             property: "og:image",
-            content: site + "open-graph.jpg?v=1",
+            content: base + "/open-graph.jpg?v=1",
           },
         },
         {
diff --git a/docs/src/assets/images/open-graph.jpg b/docs/public/open-graph.jpg
similarity index 100%
rename from docs/src/assets/images/open-graph.jpg
rename to docs/public/open-graph.jpg