diff --git a/internal/app/seal.go b/internal/app/seal.go
index 228be5c..155fafb 100644
--- a/internal/app/seal.go
+++ b/internal/app/seal.go
@@ -34,8 +34,8 @@ var posixUsername = regexp.MustCompilePOSIX("^[a-z_]([A-Za-z0-9_-]{0,31}|[A-Za-z
 type appSeal struct {
 	// app unique ID string representation
 	id string
-	// dbus proxy message buffer retriever
-	dbusMsg func(f func(msgbuf []string))
+	// dump dbus proxy message buffer
+	dbusMsg func()
 
 	// freedesktop application ID
 	fid string
diff --git a/internal/app/start.go b/internal/app/start.go
index d0a0116..96198df 100644
--- a/internal/app/start.go
+++ b/internal/app/start.go
@@ -140,11 +140,7 @@ func (a *app) Run(ctx context.Context, rs *RunState) error {
 
 	// print queued up dbus messages
 	if a.seal.dbusMsg != nil {
-		a.seal.dbusMsg(func(msgbuf []string) {
-			for _, msg := range msgbuf {
-				fmsg.Println(msg)
-			}
-		})
+		a.seal.dbusMsg()
 	}
 
 	// update store and revert app setup transaction
diff --git a/internal/system/dbus.go b/internal/system/dbus.go
index 886ba77..859fa02 100644
--- a/internal/system/dbus.go
+++ b/internal/system/dbus.go
@@ -23,7 +23,7 @@ func (sys *I) MustProxyDBus(sessionPath string, session *dbus.Config, systemPath
 	}
 }
 
-func (sys *I) ProxyDBus(session, system *dbus.Config, sessionPath, systemPath string) (func(f func(msgbuf []string)), error) {
+func (sys *I) ProxyDBus(session, system *dbus.Config, sessionPath, systemPath string) (func(), error) {
 	d := new(DBus)
 
 	// used by waiting goroutine to notify process exit
@@ -65,7 +65,7 @@ func (sys *I) ProxyDBus(session, system *dbus.Config, sessionPath, systemPath st
 
 	// seal dbus proxy
 	d.out = &scanToFmsg{msg: new(strings.Builder)}
-	return d.out.F, fmsg.WrapErrorSuffix(d.proxy.Seal(session, system),
+	return d.out.Dump, fmsg.WrapErrorSuffix(d.proxy.Seal(session, system),
 		"cannot seal message bus proxy:")
 }
 
@@ -195,8 +195,10 @@ func (s *scanToFmsg) write(p []byte, a int) (int, error) {
 	}
 }
 
-func (s *scanToFmsg) F(f func(msgbuf []string)) {
+func (s *scanToFmsg) Dump() {
 	s.mu.RLock()
-	f(s.msgbuf)
+	for _, msg := range s.msgbuf {
+		fmsg.Println(msg)
+	}
 	s.mu.RUnlock()
 }