diff --git a/doc/src/base/base.md b/doc/src/base/base.md
index aa5d23281dd6b..a4f90ba6c6d0a 100644
--- a/doc/src/base/base.md
+++ b/doc/src/base/base.md
@@ -465,6 +465,7 @@ Base.locate_package
 Base.require
 Base.compilecache
 Base.isprecompiled
+Base.get_extension
 ```
 
 ## Internals