diff --git a/rs/replica/setup_ic_network/src/lib.rs b/rs/replica/setup_ic_network/src/lib.rs
index 0c9b0374899..10c0aa68a8a 100644
--- a/rs/replica/setup_ic_network/src/lib.rs
+++ b/rs/replica/setup_ic_network/src/lib.rs
@@ -74,7 +74,7 @@ use tower_http::trace::TraceLayer;
 /// we will reconstruct the blocks by looking up the referenced ingress messages in the ingress
 /// pool or, if they are not there, by fetching missing ingress messages from peers who are
 /// advertising the blocks.
-const HASHES_IN_BLOCKS_FEATURE_ENABLED: bool = false;
+const HASHES_IN_BLOCKS_FEATURE_ENABLED: bool = true;
 
 /// This limit is used to protect against a malicious peer advertising many ingress messages.
 /// If no malicious peers are present the ingress pools are bounded by a separate limit.