diff --git a/cmd/cbconvert-gui/go.mod b/cmd/cbconvert-gui/go.mod
index 0914a58..fd7ea37 100644
--- a/cmd/cbconvert-gui/go.mod
+++ b/cmd/cbconvert-gui/go.mod
@@ -5,7 +5,6 @@ go 1.26
 require (
 	github.com/gen2brain/cbconvert v1.1.0
 	github.com/gen2brain/iup-go/iup v0.32.1-0.20260604112206-a19da6654449
-	github.com/godbus/dbus/v5 v5.2.2
 )
 
 require (
diff --git a/cmd/cbconvert-gui/go.sum b/cmd/cbconvert-gui/go.sum
index 3e37c29..51acec0 100644
--- a/cmd/cbconvert-gui/go.sum
+++ b/cmd/cbconvert-gui/go.sum
@@ -83,8 +83,6 @@ github.com/go-errors/errors v1.5.1 h1:ZwEMSLRCapFLflTpT7NKaAc7ukJ8ZPEjzlxt8rPN8b
 github.com/go-errors/errors v1.5.1/go.mod h1:sIVyrIiJhuEF+Pj9Ebtd6P/rEYROXFi3BopGUQ5a5Og=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/godbus/dbus/v5 v5.2.2 h1:TUR3TgtSVDmjiXOgAAyaZbYmIeP3DPkld3jgKGV8mXQ=
-github.com/godbus/dbus/v5 v5.2.2/go.mod h1:3AAv2+hPq5rdnr5txxxRwiGjPXamgoIHgz9FPBfOp3c=
 github.com/golang/geo v0.0.0-20190916061304-5b978397cfec/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
 github.com/golang/geo v0.0.0-20200319012246-673a6f80352d/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
 github.com/golang/geo v0.0.0-20260612074446-f1a45663b0f3 h1:UlucSQUu9SZdDRlMWv5N/T3Rig9gv615vWvHFKrXHWA=
diff --git a/cmd/cbconvert-gui/main.go b/cmd/cbconvert-gui/main.go
index efb5fc7..e11af0b 100644
--- a/cmd/cbconvert-gui/main.go
+++ b/cmd/cbconvert-gui/main.go
@@ -957,3 +957,52 @@ func onFilterChanged(ih iup.Ihandle) int {
 
 	return iup.DEFAULT
 }
+
+func fileDlg(title string, multiple, directory bool) ([]string, error) {
+	ret := make([]string, 0)
+
+	dlg := iup.FileDlg()
+	defer dlg.Destroy()
+
+	if !directory {
+		mf := "YES"
+		if !multiple {
+			mf = "NO"
+		}
+
+		dlg.SetAttributes(map[string]string{
+			"DIALOGTYPE":    "OPEN",
+			"MULTIPLEFILES": mf,
+			"EXTFILTER":     "Comic Files|*.rar;*.zip;*.7z;*.tar;*.cbr;*.cbz;*.cb7;*.cbt;*.pdf;*.epub;*.mobi;*.docx;*.pptx|",
+			"FILTER":        "*.cb*", // for Motif
+			"TITLE":         title,
+		})
+	} else {
+		dlg.SetAttributes(map[string]string{
+			"DIALOGTYPE": "DIR",
+			"TITLE":      title,
+		})
+	}
+
+	iup.Popup(dlg, iup.CENTERPARENT, iup.CENTERPARENT)
+
+	if dlg.GetInt("STATUS") == 0 {
+		if !directory {
+			value := dlg.GetAttribute("VALUE")
+			sp := strings.Split(value, "|")
+
+			if len(sp) > 1 {
+				for _, file := range sp[1 : len(sp)-1] {
+					ret = append(ret, filepath.Join(sp[0], file))
+				}
+			} else {
+				ret = append(ret, value)
+			}
+		} else {
+			value := dlg.GetAttribute("VALUE")
+			ret = append(ret, value)
+		}
+	}
+
+	return ret, nil
+}
diff --git a/cmd/cbconvert-gui/main_filedlg.go b/cmd/cbconvert-gui/main_filedlg.go
deleted file mode 100644
index 5961d98..0000000
--- a/cmd/cbconvert-gui/main_filedlg.go
+++ /dev/null
@@ -1,65 +0,0 @@
-//go:build !portal
-
-package main
-
-import (
-	"path/filepath"
-	"strings"
-
-	"github.com/gen2brain/iup-go/iup"
-)
-
-func fileDlg(title string, multiple, directory bool) ([]string, error) {
-	ret := make([]string, 0)
-
-	dlg := iup.FileDlg()
-	defer dlg.Destroy()
-
-	if !directory {
-		mf := "YES"
-		if !multiple {
-			mf = "NO"
-		}
-
-		dlg.SetAttributes(map[string]string{
-			"DIALOGTYPE":    "OPEN",
-			"MULTIPLEFILES": mf,
-			"EXTFILTER":     "Comic Files|*.rar;*.zip;*.7z;*.tar;*.cbr;*.cbz;*.cb7;*.cbt;*.pdf;*.epub;*.mobi;*.docx;*.pptx|",
-			"FILTER":        "*.cb*", // for Motif
-			"TITLE":         title,
-		})
-	} else {
-		dlg.SetAttributes(map[string]string{
-			"DIALOGTYPE": "DIR",
-			"TITLE":      title,
-		})
-	}
-
-	iup.Popup(dlg, iup.CENTERPARENT, iup.CENTERPARENT)
-
-	if dlg.GetInt("STATUS") == 0 {
-		if !directory {
-			value := dlg.GetAttribute("VALUE")
-			sp := strings.Split(value, "|")
-
-			if strings.ToLower(iup.GetGlobal("DRIVER")) == "cocoa" {
-				for _, file := range sp {
-					ret = append(ret, file)
-				}
-			} else {
-				if len(sp) > 1 {
-					for _, file := range sp[1 : len(sp)-1] {
-						ret = append(ret, filepath.Join(sp[0], file))
-					}
-				} else {
-					ret = append(ret, value)
-				}
-			}
-		} else {
-			value := dlg.GetAttribute("VALUE")
-			ret = append(ret, value)
-		}
-	}
-
-	return ret, nil
-}
diff --git a/cmd/cbconvert-gui/main_filedlg_portal.go b/cmd/cbconvert-gui/main_filedlg_portal.go
deleted file mode 100644
index 3a5c301..0000000
--- a/cmd/cbconvert-gui/main_filedlg_portal.go
+++ /dev/null
@@ -1,106 +0,0 @@
-//go:build portal
-
-package main
-
-import (
-	"net/url"
-
-	"github.com/godbus/dbus/v5"
-)
-
-func fileDlg(title string, multiple, directory bool) ([]string, error) {
-	ret := make([]string, 0)
-
-	conn, err := dbus.ConnectSessionBus()
-	if err != nil {
-		return ret, err
-	}
-	defer conn.Close()
-
-	dest := "org.freedesktop.portal.Desktop"
-	path := "/org/freedesktop/portal/desktop"
-	resp := "org.freedesktop.portal.Request.Response"
-
-	if err = conn.AddMatchSignal(
-		dbus.WithMatchInterface(dest),
-		dbus.WithMatchObjectPath(dbus.ObjectPath(path)),
-		dbus.WithMatchSender(conn.Names()[0]),
-	); err != nil {
-		return ret, err
-	}
-
-	c := make(chan *dbus.Signal, 10)
-	conn.Signal(c)
-
-	type Item struct {
-		Index  uint32
-		Filter string
-	}
-
-	type Filter struct {
-		Title   string
-		Filters []Item
-	}
-
-	filters := []Filter{
-		{
-			"Comic Files",
-			[]Item{
-				Item{0, "*.rar"},
-				Item{0, "*.zip"},
-				Item{0, "*.7z"},
-				Item{0, "*.tar"},
-				Item{0, "*.cbr"},
-				Item{0, "*.cbz"},
-				Item{0, "*.cb7"},
-				Item{0, "*.cbt"},
-				Item{0, "*.pdf"},
-				Item{0, "*.epub"},
-				Item{0, "*.mobi"},
-				Item{0, "*.docx"},
-				Item{0, "*.pptx"},
-			},
-		},
-	}
-
-	opts := map[string]any{
-		"multiple":  multiple,
-		"directory": directory,
-	}
-
-	if !directory {
-		opts["filters"] = filters
-	}
-
-	obj := conn.Object(dest, dbus.ObjectPath(path))
-	call := obj.Call("org.freedesktop.portal.FileChooser.OpenFile", 0, "", title, opts)
-	if call.Err != nil {
-		return ret, call.Err
-	}
-
-	for v := range c {
-		if v.Name != resp {
-			continue
-		}
-
-		status := v.Body[0].(uint32)
-
-		if status == 0 {
-			m := v.Body[1].(map[string]dbus.Variant)
-			uris := m["uris"].Value().([]string)
-
-			for _, uri := range uris {
-				u, err := url.ParseRequestURI(uri)
-				if err != nil {
-					return ret, err
-				}
-
-				ret = append(ret, u.Path)
-			}
-		}
-
-		break
-	}
-
-	return ret, nil
-}