diff --git a/src/callbacks.c b/src/callbacks.c
index 86877b6..bd15bf0 100644
--- a/src/callbacks.c
+++ b/src/callbacks.c
@@ -36,7 +36,7 @@ static char const * _authors[] =
 
 /* public */
 /* functions */
-gboolean on_closex(GtkWidget * widget, GdkEvent * event, gpointer data)
+gboolean on_closex(gpointer data)
 {
 	Editor * editor = data;
 
diff --git a/src/callbacks.h b/src/callbacks.h
index d526869..2633f20 100644
--- a/src/callbacks.h
+++ b/src/callbacks.h
@@ -22,7 +22,7 @@
 
 
 /* functions */
-gboolean on_closex(GtkWidget * widget, GdkEvent * event, gpointer data);
+gboolean on_closex(gpointer data);
 void on_edit_find(gpointer data);
 void on_edit_preferences(gpointer data);
 void on_file_close(gpointer data);
diff --git a/src/editor.c b/src/editor.c
index fc1b94c..e7f2f01 100644
--- a/src/editor.c
+++ b/src/editor.c
@@ -148,8 +148,8 @@ Editor * editor_new(void)
 #if GTK_CHECK_VERSION(2, 6, 0)
 	gtk_window_set_icon_name(GTK_WINDOW(editor->window), "text-editor");
 #endif
-	g_signal_connect(G_OBJECT(editor->window), "delete-event", G_CALLBACK(
-			on_closex), editor);
+	g_signal_connect_swapped(G_OBJECT(editor->window), "delete-event",
+			G_CALLBACK(on_closex), editor);
 	vbox = gtk_vbox_new(FALSE, 0);
 	/* menubar */
 #ifndef EMBEDDED