diff --git a/mkdocs.yml b/mkdocs.yml
index a710c8ba95d9b4cf5f013028616ecdc28af6c9d4..91b45097ba89201bf7a90f4ee859e25df4eec0df 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -48,7 +48,7 @@ extra:
             - name: Petra Rutanen
               username: petra-rutanen
             - name: Tapio Lappalainen
-              username: tapio lappalainen
+              username: tapio-lappalainen
 
 
     social: