diff --git a/lib/indexer/addrindexer.js b/lib/indexer/addrindexer.js
index ce2478dd..d864be6b 100644
--- a/lib/indexer/addrindexer.js
+++ b/lib/indexer/addrindexer.js
@@ -141,7 +141,7 @@ class AddrIndexer extends Indexer {
       let hasAddress = false;
 
       for (const addr of tx.getAddresses(view)) {
-        const prefix = addr.getPrefix();
+        const prefix = addr.getPrefix(this.network);
 
         if (prefix < 0)
           continue;
@@ -178,7 +178,7 @@ class AddrIndexer extends Indexer {
       let hasAddress = false;
 
       for (const addr of tx.getAddresses(view)) {
-        const prefix = addr.getPrefix();
+        const prefix = addr.getPrefix(this.network);
 
         if (prefix < 0)
           continue;
@@ -223,7 +223,7 @@ class AddrIndexer extends Indexer {
       throw new Error('Limit above max of ${this.maxTxs}.');
 
     const hash = Address.getHash(addr);
-    const prefix = addr.getPrefix();
+    const prefix = addr.getPrefix(this.network);
 
     const opts = {
       limit,
diff --git a/lib/mempool/addrindexer.js b/lib/mempool/addrindexer.js
index e28353b6..f2d4b34f 100644
--- a/lib/mempool/addrindexer.js
+++ b/lib/mempool/addrindexer.js
@@ -20,9 +20,12 @@ class AddrIndexer {
   /**
    * Create TX address index.
    * @constructor
+   * @param {Network} network
    */
 
-  constructor() {
+  constructor(network) {
+    this.network = network;
+
     // Map of addr->entries.
     this.index = new BufferMap();
 
@@ -36,7 +39,7 @@ class AddrIndexer {
   }
 
   getKey(addr) {
-    const prefix = addr.getPrefix();
+    const prefix = addr.getPrefix(this.network);
 
     if (prefix < 0)
       return null;
diff --git a/lib/mempool/mempool.js b/lib/mempool/mempool.js
index 5492a9c1..fbf3ab8a 100644
--- a/lib/mempool/mempool.js
+++ b/lib/mempool/mempool.js
@@ -73,7 +73,7 @@ class Mempool extends EventEmitter {
     this.spents = new BufferMap();
     this.rejects = new RollingFilter(120000, 0.000001);
 
-    this.addrindex = new AddrIndexer();
+    this.addrindex = new AddrIndexer(this.network);
   }
 
   /**