diff --git a/docs/extensions/index.md b/docs/extensions/index.md
index 8a43976bcd4de88732298a9b5ea5a1b8d713bd59..61f273ca2b1886711fb3fd010b4f3cb4bfb5fb9b 100644
--- a/docs/extensions/index.md
+++ b/docs/extensions/index.md
@@ -52,3 +52,15 @@ Extensions which undergo a [formal review](/extensions/lifecycle.md#formal-revie
 
 >> See: [Automated Distribution](/extensions/publish.md#automated-distribution)
 
+## Interacting with core
+
+There are a number of ways in which extensions can interact with core. These are supported to greater or lesser degrees and only extensions that use fully supported methods are eligible for publication in the extensions directory.
+
+# Fully supported methods are:
+ - civicrm v3 api
+ - civicrm v4 api (when it is stable)
+ - hooks documented in this guide
+ - [Civi::cache](https://docs.civicrm.org/dev/en/latest/framework/cache/)
+ - Civi::$statics (page to be added)
+ - [Civi::settings](https://docs.civicrm.org/dev/en/latest/framework/setting/)
+ - internal symphony listeners  - 'civi.api.resolve', 'civi.api.prepare'
\ No newline at end of file
diff --git a/docs/extensions/interacting-with-core b/docs/extensions/interacting-with-core
deleted file mode 100644
index 1254068c1bb9cfd028a76e6f1ff717308947c962..0000000000000000000000000000000000000000
--- a/docs/extensions/interacting-with-core
+++ /dev/null
@@ -1,12 +0,0 @@
-There are a number of ways in which extensions can interact with core. These are supported to greater or lesser degrees and only extensions that use fully supported methods are eligible for publication in the extensions directory.
-
-# Fully supported methods are:
- - civicrm v3 api
- - civicrm v4 api (when it is stable)
- - hooks documented in this guide
- - [Civi::cache](https://docs.civicrm.org/dev/en/latest/framework/cache/)
- - Civi::$statics (page to be added)
- - [Civi::settings](https://docs.civicrm.org/dev/en/latest/framework/setting/)
- - internal symphony listeners  - 'civi.api.resolve', 'civi.api.prepare'
- 
-