diff --git a/src/api/client/thirdparty.rs b/src/api/client/thirdparty.rs
index de24c0ec..f6af8729 100644
--- a/src/api/client/thirdparty.rs
+++ b/src/api/client/thirdparty.rs
@@ -2,7 +2,7 @@ use std::collections::BTreeMap;
 
 use ruma::api::client::thirdparty::get_protocols;
 
-use crate::{Result, Ruma};
+use crate::{Result, Ruma, RumaResponse};
 
 /// # `GET /_matrix/client/r0/thirdparty/protocols`
 ///
@@ -15,3 +15,13 @@ pub(crate) async fn get_protocols_route(
 		protocols: BTreeMap::new(),
 	})
 }
+
+/// # `GET /_matrix/client/unstable/thirdparty/protocols`
+///
+/// Same as `get_protocols_route`, except for some reason Element Android legacy
+/// calls this
+pub(crate) async fn get_protocols_route_unstable(
+	body: Ruma<get_protocols::v3::Request>,
+) -> Result<RumaResponse<get_protocols::v3::Response>> {
+	get_protocols_route(body).await.map(RumaResponse)
+}
diff --git a/src/api/routes.rs b/src/api/routes.rs
index 94951aec..b22a32cb 100644
--- a/src/api/routes.rs
+++ b/src/api/routes.rs
@@ -94,6 +94,8 @@ pub fn build(router: Router, server: &Server) -> Router {
 		.ruma_route(client::search_users_route)
 		.ruma_route(client::get_member_events_route)
 		.ruma_route(client::get_protocols_route)
+		.route("/_matrix/client/unstable/thirdparty/protocols",
+		    get(client::get_protocols_route_unstable))
 		.ruma_route(client::send_message_event_route)
 		.ruma_route(client::send_state_event_for_key_route)
 		.ruma_route(client::get_state_events_route)