diff --git a/mutiny-core/src/ldkstorage.rs b/mutiny-core/src/ldkstorage.rs
index cd1c8a3d9..e7797fff4 100644
--- a/mutiny-core/src/ldkstorage.rs
+++ b/mutiny-core/src/ldkstorage.rs
@@ -606,10 +606,8 @@ impl<S: MutinyStorage>
             .map_err(|_| lightning::io::ErrorKind::Other.into())
     }
 
-    fn persist_graph(&self, network_graph: &NetworkGraph) -> Result<(), lightning::io::Error> {
-        self.storage
-            .set_data(NETWORK_GRAPH_KEY, network_graph.encode().to_hex(), None)
-            .map_err(|_| lightning::io::ErrorKind::Other.into())
+    fn persist_graph(&self, _network_graph: &NetworkGraph) -> Result<(), lightning::io::Error> {
+        Ok(())
     }
 
     fn persist_scorer(
diff --git a/mutiny-wasm/src/indexed_db.rs b/mutiny-wasm/src/indexed_db.rs
index 336c304b4..631906753 100644
--- a/mutiny-wasm/src/indexed_db.rs
+++ b/mutiny-wasm/src/indexed_db.rs
@@ -194,6 +194,12 @@ impl IndexedDbStorage {
                     "key from indexedDB is not a string"
                 ))))?;
 
+            // we no longer need to read this key,
+            // so we can remove it from memory
+            if key == NETWORK_GRAPH_KEY {
+                continue;
+            }
+
             let json: Value = value.into_serde()?;
             map.set(key, json)?;
         }