diff --git a/STIX_external_reference/readme.md b/STIX_external_reference/readme.md
index f7d3149..3d3fe7b 100644
--- a/STIX_external_reference/readme.md
+++ b/STIX_external_reference/readme.md
@@ -36,7 +36,7 @@ The goal of the project is to customize STIX™ for facilitating the sharing of
   - [Browser History Event Object](#Browser-History-Event-Object)
   - [Plug and Play (PnP) Event Object](<#Plug-and-Play-(PnP)-Event-Object>)
   - [File Visit Event Object](#File-Visit-Event-Object)
-    - [Example 1: RecentFileCache](#Example-1:-RecentFileCache)
+    - [Example 1: RecentFileCache](#Example-1-RecentFileCache)
     - [Example 2: Shimcache](#Example-2:-Shimcache)
     - [Example 3: UserAssist](#Example-3:-UserAssist)
     - [Example 4: Prefetch](#Example-4:-Prefetch)