diff --git a/crates/ruma/Cargo.toml b/crates/ruma/Cargo.toml
index af4acf2f..03ce577a 100644
--- a/crates/ruma/Cargo.toml
+++ b/crates/ruma/Cargo.toml
@@ -139,6 +139,7 @@ unstable-msc2677 = [
 ]
 unstable-msc2746 = ["ruma-common/unstable-msc2746"]
 unstable-msc2870 = ["ruma-common/unstable-msc2870"]
+unstable-msc2965 = ["ruma-client-api?/unstable-msc2965"]
 unstable-msc3245 = ["ruma-common/unstable-msc3245"]
 unstable-msc3246 = ["ruma-common/unstable-msc3246"]
 unstable-msc3381 = ["ruma-common/unstable-msc3381"]