4 files changed, 8 insertions, 4 deletions
diff --git a/files/pl/mdn/at_ten/index.html b/files/pl/mdn/at_ten/index.html
index c802ba1a07..4a913177da 100644
--- a/files/pl/mdn/at_ten/index.html
+++ b/files/pl/mdn/at_ten/index.html
@@ -1,6 +1,6 @@
 ---
 title: 10 lat MDN
-slug: dziesiec_lat_mdn
+slug: MDN/At_ten
 tags:
   - História
   - Internet
@@ -8,6 +8,7 @@ tags:
   - Mozilla
   - Społeczność
 translation_of: MDN_at_ten
+original_slug: dziesiec_lat_mdn
 ---
 <p class="hidden"><span class="seoSummary">Świętujemy 10 urodziny MDN</span></p>
 
diff --git a/files/pl/mdn/guidelines/writing_style_guide/index.html b/files/pl/mdn/guidelines/writing_style_guide/index.html
index 370bd6714e..c3dd8bd2ab 100644
--- a/files/pl/mdn/guidelines/writing_style_guide/index.html
+++ b/files/pl/mdn/guidelines/writing_style_guide/index.html
@@ -1,6 +1,6 @@
 ---
 title: Przewodnik po stylach dokumentacji MDN
-slug: MDN/Guidelines/Style_guide
+slug: MDN/Guidelines/Writing_style_guide
 tags:
   - Dokumentacja
   - Dokumenty MDN
@@ -8,6 +8,7 @@ tags:
   - Przewodnik stylu MDN
   - Style w MDN
 translation_of: MDN/Guidelines/Writing_style_guide
+original_slug: MDN/Guidelines/Style_guide
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/pl/mdn/tools/index.html b/files/pl/mdn/tools/index.html
index fd60142577..ad6d18d577 100644
--- a/files/pl/mdn/tools/index.html
+++ b/files/pl/mdn/tools/index.html
@@ -1,8 +1,9 @@
 ---
 title: MDN user guide
-slug: MDN/User_guide
+slug: MDN/Tools
 translation_of: MDN/Tools
 translation_of_original: MDN/User_guide
+original_slug: MDN/User_guide
 ---
 <div>{{MDNSidebar}}</div><p>The Mozilla Developer Network site is an advanced system for finding, reading, and contributing to documentation and sample code for Web developers (as well as for Firefox and Firefox OS developers). The MDN user guide provides articles detailing how to use MDN to find the documentation you need, and, if you wish, how to help make the material better, more expansive, and more complete.</p>
 &lt;&gt;
diff --git a/files/pl/mdn/yari/index.html b/files/pl/mdn/yari/index.html
index 6c2be0c158..3e4cf0c5b3 100644
--- a/files/pl/mdn/yari/index.html
+++ b/files/pl/mdn/yari/index.html
@@ -1,10 +1,11 @@
 ---
 title: 'Kuma: MDN''s wiki platform'
-slug: MDN/Kuma
+slug: MDN/Yari
 tags:
   - Kuma
   - MDN Meta
 translation_of: MDN/Kuma
+original_slug: MDN/Kuma
 ---
 <div>{{MDNSidebar}}</div>