diff --git a/quartz/plugins/emitters/contentIndex.ts b/quartz/plugins/emitters/contentIndex.ts
index c5170c6..bc4c6c3 100644
--- a/quartz/plugins/emitters/contentIndex.ts
+++ b/quartz/plugins/emitters/contentIndex.ts
@@ -2,7 +2,7 @@ import { Root } from "hast"
 import { GlobalConfiguration } from "../../cfg"
 import { getDate } from "../../components/Date"
 import { escapeHTML } from "../../util/escape"
-import { FilePath, FullSlug, SimpleSlug, simplifySlug } from "../../util/path"
+import { FilePath, FullSlug, SimpleSlug, joinSegments, simplifySlug } from "../../util/path"
 import { QuartzEmitterPlugin } from "../types"
 import { toHtml } from "hast-util-to-html"
 import path from "path"
@@ -37,7 +37,7 @@ const defaultOptions: Options = {
 function generateSiteMap(cfg: GlobalConfiguration, idx: ContentIndex): string {
   const base = cfg.baseUrl ?? ""
   const createURLEntry = (slug: SimpleSlug, content: ContentDetails): string => `<url>
-    <loc>https://${base}/${encodeURI(slug)}</loc>
+    <loc>https://${joinSegments(base, encodeURI(slug))}</loc>
     <lastmod>${content.date?.toISOString()}</lastmod>
   </url>`
   const urls = Array.from(idx)
@@ -52,8 +52,8 @@ function generateRSSFeed(cfg: GlobalConfiguration, idx: ContentIndex, limit?: nu
 
   const createURLEntry = (slug: SimpleSlug, content: ContentDetails): string => `<item>
     <title>${escapeHTML(content.title)}</title>
-    <link>${root}/${encodeURI(slug)}</link>
-    <guid>${root}/${encodeURI(slug)}</guid>
+    <link>${joinSegments(root, encodeURI(slug))}</link>
+    <guid>${joinSegments(root, encodeURI(slug))}</guid>
     <description>${content.richContent ?? content.description}</description>
     <pubDate>${content.date?.toUTCString()}</pubDate>
   </item>`