diff --git a/src/environmentd/src/test_util.rs b/src/environmentd/src/test_util.rs
index b6f81b542b5a..9a9f79ff2716 100644
--- a/src/environmentd/src/test_util.rs
+++ b/src/environmentd/src/test_util.rs
@@ -1051,6 +1051,7 @@ pub async fn get_explain_timestamp_determination(
 /// WARNING: If multiple tests use this, and the tests are run in parallel, then make sure the test
 /// use different postgres tables.
 pub async fn create_postgres_source_with_table<'a>(
+    server: &TestServer,
     mz_client: &Client,
     table_name: &str,
     table_schema: &str,
@@ -1059,6 +1060,10 @@ pub async fn create_postgres_source_with_table<'a>(
     Client,
     impl FnOnce(&'a Client, &'a Client) -> LocalBoxFuture<'a, ()>,
 ) {
+    server
+        .enable_feature_flags(&["enable_create_table_from_source"])
+        .await;
+
     let postgres_url = env::var("POSTGRES_URL")
         .map_err(|_| anyhow!("POSTGRES_URL environment variable is not set"))
         .unwrap();
@@ -1138,8 +1143,15 @@ pub async fn create_postgres_source_with_table<'a>(
             "CREATE SOURCE {source_name}
             FROM POSTGRES
             CONNECTION pgconn
-            (PUBLICATION '{source_name}')
-            FOR TABLES ({table_name});"
+            (PUBLICATION '{source_name}')"
+        ))
+        .await
+        .unwrap();
+    mz_client
+        .batch_execute(&format!(
+            "CREATE TABLE {table_name}
+            FROM SOURCE {source_name}
+            (REFERENCE {table_name});"
         ))
         .await
         .unwrap();
diff --git a/src/environmentd/tests/sql.rs b/src/environmentd/tests/sql.rs
index 9bb99474a308..7d1e1036651b 100644
--- a/src/environmentd/tests/sql.rs
+++ b/src/environmentd/tests/sql.rs
@@ -1760,9 +1760,14 @@ async fn test_timeline_read_holds() {
 
     let view_name = "v_hold";
     let source_name = "source_hold";
-    let (pg_client, cleanup_fn) =
-        test_util::create_postgres_source_with_table(&mz_client, view_name, "(a INT)", source_name)
-            .await;
+    let (pg_client, cleanup_fn) = test_util::create_postgres_source_with_table(
+        &server,
+        &mz_client,
+        view_name,
+        "(a INT)",
+        source_name,
+    )
+    .await;
 
     // Create user table in Materialize.
     mz_client
@@ -1836,6 +1841,7 @@ async fn test_session_linearizability(isolation_level: &str) {
     let pg_table_name = "v_lin";
     let pg_source_name = "source_lin";
     let (pg_client, cleanup_fn) = test_util::create_postgres_source_with_table(
+        &server,
         &mz_client,
         pg_table_name,
         "(a INT)",