diff --git a/crates/matrix-sdk/src/sliding_sync/builder.rs b/crates/matrix-sdk/src/sliding_sync/builder.rs
index 9206c0661..6776edc4f 100644
--- a/crates/matrix-sdk/src/sliding_sync/builder.rs
+++ b/crates/matrix-sdk/src/sliding_sync/builder.rs
@@ -230,7 +230,7 @@ impl SlidingSyncBuilder {
 
         let mut delta_token = None;
 
-        let (internal_channel_sender, internal_channel_receiver) = channel(256);
+        let (internal_channel_sender, internal_channel_receiver) = channel(8);
 
         let mut lists = BTreeMap::new();