diff --git a/internal/web/gist.go b/internal/web/gist.go
index c108dcc..e3e1d67 100644
--- a/internal/web/gist.go
+++ b/internal/web/gist.go
@@ -80,6 +80,10 @@ func gistInit(next echo.HandlerFunc) echo.HandlerFunc {
 			setData(ctx, "hasLiked", hasLiked)
 		}
 
+		if gist.Private {
+			setData(ctx, "NoIndex", true)
+		}
+
 		return next(ctx)
 	}
 }
diff --git a/templates/base/base_header.html b/templates/base/base_header.html
index 582136e..415a0c3 100644
--- a/templates/base/base_header.html
+++ b/templates/base/base_header.html
@@ -3,6 +3,10 @@
 <html lang="en" class="h-full">
 <head>
     <meta charset="UTF-8" />
+    {{ if .NoIndex }}
+        <meta name="robots" content="noindex, follow">
+    {{ end }}
+
     <script>
         const checkTheme = () => {
             if (localStorage.theme === 'dark' || (!('theme' in localStorage) && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
