diff --git a/docs/source/api.rst b/docs/source/api.rst
index 466e3e1..c44cec4 100644
--- a/docs/source/api.rst
+++ b/docs/source/api.rst
@@ -1,5 +1,8 @@
 .. _BBSimAPI:
 
+REST APIs
+=========
+
 BBSimAPI
 --------
 
@@ -23,4 +26,4 @@
 corresponding REST server is started on port 50073. The following endpoints are
 currently defined:
 
-.. openapi:: ../swagger/legacy/bbsim.swagger.json
+.. openapi:: ../swagger/legacy/bbsim.swagger.json
\ No newline at end of file