diff --git a/lecture/nn/nn6-backprop.md b/lecture/nn/nn6-backprop.md
index f580f5c99..031ca6a4f 100644
--- a/lecture/nn/nn6-backprop.md
+++ b/lecture/nn/nn6-backprop.md
@@ -25,7 +25,6 @@ youtube:
   - link: "https://youtu.be/uvT4WPIIkwQ"
     name: "NN6.3 - MLP Zusammenfassung"
 attachments:
-
   - link: "https://raw.githubusercontent.com/Artificial-Intelligence-HSBI-TDU/KI-Vorlesung/master/lecture/nn/files/NN6-MLP_Backpropagation.pdf"
     name: "NN6-MLP_Backpropagation.pdf"
 ---