diff --git a/chainntnfs/bitcoindnotify/bitcoind_debug.go b/chainntnfs/bitcoindnotify/bitcoind_debug.go
index 85842ca53..04cd030c6 100644
--- a/chainntnfs/bitcoindnotify/bitcoind_debug.go
+++ b/chainntnfs/bitcoindnotify/bitcoind_debug.go
@@ -1,3 +1,5 @@
+// +build debug
+
 package bitcoindnotify
 
 import (
diff --git a/chainntnfs/btcdnotify/btcd_debug.go b/chainntnfs/btcdnotify/btcd_debug.go
index 47136f0b5..1c91d3f69 100644
--- a/chainntnfs/btcdnotify/btcd_debug.go
+++ b/chainntnfs/btcdnotify/btcd_debug.go
@@ -1,3 +1,5 @@
+// +build debug
+
 package btcdnotify
 
 import (
diff --git a/chainntnfs/interface_debug.go b/chainntnfs/interface_debug.go
index f3e6eaf4a..aeb3461ba 100644
--- a/chainntnfs/interface_debug.go
+++ b/chainntnfs/interface_debug.go
@@ -1,3 +1,5 @@
+// +build debug
+
 package chainntnfs
 
 import "github.com/btcsuite/btcd/chaincfg/chainhash"
diff --git a/chainntnfs/neutrinonotify/neutrino_debug.go b/chainntnfs/neutrinonotify/neutrino_debug.go
index ece4af276..19085c38c 100644
--- a/chainntnfs/neutrinonotify/neutrino_debug.go
+++ b/chainntnfs/neutrinonotify/neutrino_debug.go
@@ -1,3 +1,5 @@
+// +build debug
+
 package neutrinonotify
 
 import (