diff --git a/consensus/types/src/core/chain_spec.rs b/consensus/types/src/core/chain_spec.rs
index 6d25e3baf40..08724cd6160 100644
--- a/consensus/types/src/core/chain_spec.rs
+++ b/consensus/types/src/core/chain_spec.rs
@@ -821,14 +821,19 @@ impl ChainSpec {
 
     /// Returns the min epoch for blob / data column sidecar requests based on the current epoch.
     /// Switch to use the column sidecar config once the `blob_retention_epoch` has passed Fulu fork epoch.
+    /// Never uses the `blob_retention_epoch` for networks that started with Fulu enabled.
     pub fn min_epoch_data_availability_boundary(&self, current_epoch: Epoch) -> Option<Epoch> {
         let fork_epoch = self.deneb_fork_epoch?;
         let blob_retention_epoch =
             current_epoch.saturating_sub(self.min_epochs_for_blob_sidecars_requests);
         match self.fulu_fork_epoch {
-            Some(fulu_fork_epoch) if blob_retention_epoch > fulu_fork_epoch => Some(
-                current_epoch.saturating_sub(self.min_epochs_for_data_column_sidecars_requests),
-            ),
+            Some(fulu_fork_epoch)
+                if blob_retention_epoch > fulu_fork_epoch || fulu_fork_epoch == Epoch::new(0) =>
+            {
+                Some(
+                    current_epoch.saturating_sub(self.min_epochs_for_data_column_sidecars_requests),
+                )
+            }
             _ => Some(std::cmp::max(fork_epoch, blob_retention_epoch)),
         }
     }