diff --git a/books/tech/SUMMARY.md b/books/tech/SUMMARY.md
index 836784b..895c55f 100644
--- a/books/tech/SUMMARY.md
+++ b/books/tech/SUMMARY.md
@@ -35,4 +35,4 @@
   - [Helium](partners_utilization/helium.md)
   - [Holochain](partners_utilization/helium.md)
   - [TZG](partners_utilization/tanzania.md)
-  - [Tier-S DC](partners_utilization/tier_s_datacenter.md)
+  - [Tier-S DC](partners_utilization/tier_s_datacenter.md)
\ No newline at end of file