diff --git a/docs/simplesamlphp-reference-idp-hosted.txt b/docs/simplesamlphp-reference-idp-hosted.txt
index 50b5c0da591e6aba2e5925e549e80b1f0df8e2c6..02bfcc3d86685e3f6aced3dcb01b659e920f66f9 100644
--- a/docs/simplesamlphp-reference-idp-hosted.txt
+++ b/docs/simplesamlphp-reference-idp-hosted.txt
@@ -55,6 +55,9 @@ Common options
     set to `__DEFAULT__`, and that IdP will be used when no other
     entries in the metadata matches.
 
+`logouttype`
+:   The logout handler to use. Either `iframe` or `traditional`. `traditional` is the default.
+
 `OrganizationName`
 :   The name of the organization responsible for this IdP.
     This name does not need to be suitable for display to end users.