diff --git a/crates/matrix-sdk-crypto/src/session_manager/group_sessions/mod.rs b/crates/matrix-sdk-crypto/src/session_manager/group_sessions/mod.rs
index fb0ec0ae8..9ee32d691 100644
--- a/crates/matrix-sdk-crypto/src/session_manager/group_sessions/mod.rs
+++ b/crates/matrix-sdk-crypto/src/session_manager/group_sessions/mod.rs
@@ -123,6 +123,7 @@ impl GroupSessionCache {
     ///
     /// * `room_id` - The id of the room for which we should get the outbound
     ///   group session.
+    #[cfg(test)]
     fn get(&self, room_id: &RoomId) -> Option<OutboundGroupSession> {
         self.sessions.read().get(room_id).cloned()
     }