diff --git a/src/common/src/session_config/mod.rs b/src/common/src/session_config/mod.rs
index 83e8d85429605..a5f471ace5f70 100644
--- a/src/common/src/session_config/mod.rs
+++ b/src/common/src/session_config/mod.rs
@@ -140,7 +140,7 @@ pub struct ConfigMap {
     streaming_enable_bushy_join: bool,
 
     /// Enable arrangement backfill for streaming queries. Defaults to false.
-    #[parameter(default = false)]
+    #[parameter(default = true)]
     streaming_enable_arrangement_backfill: bool,
 
     /// Allow `jsonb` in stream key