diff --git a/src/main/jbake/content/2013/first-post.md b/src/main/jbake/content/2013/pkn13.md
similarity index 79%
rename from src/main/jbake/content/2013/first-post.md
rename to src/main/jbake/content/2013/pkn13.md
index 78db9af..5aa9a5f 100644
--- a/src/main/jbake/content/2013/first-post.md
+++ b/src/main/jbake/content/2013/pkn13.md
@@ -1,7 +1,7 @@
 title=Pecha Kucha Night
 date=2013-12-18
 type=post
-tags=pechakucha, java, iot, units, pechakucha, Frankfurt
+tags=java, iot, units, pechakucha, Frankfurt
 status=published
 ~~~~~~
 
diff --git a/src/main/jbake/content/2015/apache-on-mars.md b/src/main/jbake/content/2015/apache-on-mars.md
index 2f757b7..efcbac8 100644
--- a/src/main/jbake/content/2015/apache-on-mars.md
+++ b/src/main/jbake/content/2015/apache-on-mars.md
@@ -1,7 +1,7 @@
 title=Data Quality on Mars - Apache BigData Europe 2015
 date=2015-10-10
 type=post
-tags=java, jcp, apache
+tags=java, jcp, apache, space, mars
 status=published
 ~~~~~~