diff --git a/_config.yml b/_config.yml
index 852c3be..1d8dc5c 100644
--- a/_config.yml
+++ b/_config.yml
@@ -54,6 +54,14 @@ defaults:
       path: "assets/**"
     values:
       sitemap: false
+  - scope:
+      path: "blog/categories/*"
+    values:
+      sitemap: false
+  - scope:
+      path: "blog/tags/*"
+    values:
+      sitemap: false
 
 feed:
   excerpt_only: true
diff --git a/blog/categories/index.html b/blog/categories/index.html
index 3b04668..d3b09e3 100644
--- a/blog/categories/index.html
+++ b/blog/categories/index.html
@@ -1,5 +1,6 @@
 ---
 layout: blog.default
+sitemap: true
 ---
 
 {% include ext-navigation.html %}
diff --git a/blog/tags/index.html b/blog/tags/index.html
index 261e759..cc8db5c 100644
--- a/blog/tags/index.html
+++ b/blog/tags/index.html
@@ -1,5 +1,6 @@
 ---
 layout: blog.default
+sitemap: true
 ---
 
 {% include ext-navigation.html %}