diff --git a/src/shell.c b/src/shell.c
index d691f0c71463c2a5d8170fd625727122ad6bbeba..16bae6a750925dee33f0cded3cdbefdfa6bccfc7 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -557,6 +557,10 @@ phosh_shell_class_init (PhoshShellClass *klass)
 static void
 phosh_shell_init (PhoshShell *self)
 {
+  GtkSettings *gtk_settings;
+
+  gtk_settings = gtk_settings_get_default ();
+  g_object_set (G_OBJECT (gtk_settings), "gtk-application-prefer-dark-theme", TRUE, NULL);
 }