diff --git a/primers/distributed-software-systems-architecture/_index.md b/primers/distributed-software-systems-architecture/_index.md
index 658451e7..011356b6 100644
--- a/primers/distributed-software-systems-architecture/_index.md
+++ b/primers/distributed-software-systems-architecture/_index.md
@@ -27,7 +27,7 @@ Some workloads are too high to be served from a single machine. We use distribut
 
 Almost all computer systems that we build today are distributed systems, whether large or small.
 
-{{< details summary="Glossary of Abbreviations" >}}
+<details><summary>Glossary of Abbreviations</summary>
 API
 : Application Programming Interface
 
@@ -94,4 +94,4 @@ UDP
 3PC
 : 3 Phase Commit
 
-{{</ details >}}
+</details>