diff --git a/beacon_node/src/cli.rs b/beacon_node/src/cli.rs
index a8349af86d..518ad2f041 100644
--- a/beacon_node/src/cli.rs
+++ b/beacon_node/src/cli.rs
@@ -1009,7 +1009,7 @@ pub fn cli_app() -> Command {
                        database when they are older than the data availability boundary \
                        relative to the current epoch.")
                 .action(ArgAction::Set)
-                .default_value("1")
+                .default_value("256")
                 .display_order(0)
         )
         .arg(
diff --git a/book/src/help_bn.md b/book/src/help_bn.md
index f7abc2ad79..0a132bc338 100644
--- a/book/src/help_bn.md
+++ b/book/src/help_bn.md
@@ -118,7 +118,7 @@ Options:
       --epochs-per-blob-prune <EPOCHS>
           The epoch interval with which to prune blobs from Lighthouse's
           database when they are older than the data availability boundary
-          relative to the current epoch. [default: 1]
+          relative to the current epoch. [default: 256]
       --epochs-per-migration <N>
           The number of epochs to wait between running the migration of data
           from the hot DB to the cold DB. Less frequent runs can be useful for
diff --git a/lighthouse/tests/beacon_node.rs b/lighthouse/tests/beacon_node.rs
index 41ff24f27d..a636919a44 100644
--- a/lighthouse/tests/beacon_node.rs
+++ b/lighthouse/tests/beacon_node.rs
@@ -1972,7 +1972,7 @@ fn prune_blobs_on_startup_false() {
 fn epochs_per_blob_prune_default() {
     CommandLineTest::new()
         .run_with_zero_port()
-        .with_config(|config| assert!(config.store.epochs_per_blob_prune == 1));
+        .with_config(|config| assert_eq!(config.store.epochs_per_blob_prune, 256));
 }
 #[test]
 fn epochs_per_blob_prune_on_startup_five() {