diff --git a/content/pages/contact-de.md b/content/pages/contact-de.md
index be654b7..6ad0354 100644
--- a/content/pages/contact-de.md
+++ b/content/pages/contact-de.md
@@ -8,6 +8,7 @@ Ich bin erreichbar via bzw. präsent auf:
 - XMPP: [t.schmittlauch@orlives.de](xmpp://t.schmittlauch@orlives.de)
 - Matrix: [@schmittlauch:ohai.su](matrix:@schmittlauch:ohai.su)
 - Fediverse (Mastodon): [@schmittlauch@toot.matereal.eu](https://toot.matereal.eu/@schmittlauch)
+- Twitter: [@schmittlauch](https://twitter.com/schmittlauch)
 - GitHub: [schmittlauch](https://github.com/schmittlauch/)
 
-Für die Kommunikation per E-Mail empfehle ich die Nutzung meines PGP Schlüssels ([E06AC616EC5E413B]({attach}/pages/Trolli Schmittlauch_0xEC5E413B_public.asc) or via [Keybase](https://keybase.io/schmittlauch)).
+Für die Kommunikation per E-Mail empfehle ich die Nutzung meines PGP Schlüssels ([E06AC616EC5E413B]({attach}/pages/Trolli Schmittlauch_0xEC5E413B_public.asc) oder via [Keybase](https://keybase.io/schmittlauch)).
diff --git a/content/pages/contact-en.md b/content/pages/contact-en.md
index dc4ea47..ee5f4ed 100644
--- a/content/pages/contact-en.md
+++ b/content/pages/contact-en.md
@@ -8,6 +8,7 @@ If you want to find me online, or reach out to me, these are the options:
 - XMPP: [t.schmittlauch@orlives.de](xmpp://t.schmittlauch@orlives.de)
 - Matrix: [@schmittlauch:ohai.su](matrix:@schmittlauch:ohai.su)
 - Fediverse (Mastodon): [@schmittlauch@toot.matereal.eu](https://toot.matereal.eu/@schmittlauch)
+- Twitter: [@schmittlauch](https://twitter.com/schmittlauch)
 - GitHub: [schmittlauch](https://github.com/schmittlauch/)
 
 Please consider using my PGP key ([E06AC616EC5E413B]({attach}/pages/Trolli Schmittlauch_0xEC5E413B_public.asc) or via [Keybase](https://keybase.io/schmittlauch)) for email correspondence.
diff --git a/content/pages/professional-de.md b/content/pages/professional-de.md
index 85890c4..23eee7e 100644
--- a/content/pages/professional-de.md
+++ b/content/pages/professional-de.md
@@ -71,7 +71,7 @@ Als überzeugter Anhänger von Freier & Open Source Software möchte ich nicht n
 
 #### Erasmus+ Auslandssemester an der [Tampere University of Technology](https://www.tuni.fi/en/about-us/tampere-university)
 
-📍 Tampere, Finnland 🗓 08/2017 – 12/2018
+📍 Tampere, Finnland 🗓 08/2017 – 12/2017
 
 - Studienfächer: Informatik, Kommunikationstechnologie
 
diff --git a/content/pages/professional-en.md b/content/pages/professional-en.md
index bc745d4..a2088d0 100644
--- a/content/pages/professional-en.md
+++ b/content/pages/professional-en.md
@@ -72,7 +72,7 @@ I am passionate about Free and Open Source software and would like to work not o
 
 #### Erasmus+ studies abroad at [Tampere University of Technology](https://www.tuni.fi/en/about-us/tampere-university)
 
-📍 Tampere, Finland 🗓 08/2017 – 12/2018
+📍 Tampere, Finland 🗓 08/2017 – 12/2017
 
 - studies of computer science and communication technologies