diff --git a/lib/node/fullnode.js b/lib/node/fullnode.js
index 2b77a7c0..0dff21d3 100644
--- a/lib/node/fullnode.js
+++ b/lib/node/fullnode.js
@@ -166,7 +166,7 @@ class FullNode extends Node {
         chain: this.chain,
         prune: this.config.bool('prune'),
         memory: this.config.bool('memory'),
-        prefix: this.config.filter('index').str('prefix') || this.config.prefix
+        prefix: this.config.str('index-prefix', this.config.prefix)
       });
     }
 
@@ -178,7 +178,7 @@ class FullNode extends Node {
         chain: this.chain,
         prune: this.config.bool('prune'),
         memory: this.config.bool('memory'),
-        prefix: this.config.filter('index').str('prefix') || this.config.prefix,
+        prefix: this.config.str('index-prefix', this.config.prefix),
         maxTxs: this.config.uint('max-txs')
       });
     }