diff --git a/src/xsettings.c b/src/xsettings.c
index 45341d8ebd5..c29a844e0a8 100644
--- a/src/xsettings.c
+++ b/src/xsettings.c
@@ -230,6 +230,8 @@ static cairo_font_options_t *font_options;
 
 static GSettings *gsettings_client;
 
+#if defined HAVE_PGTK && defined HAVE_GSETTINGS
+
 static bool
 xg_settings_key_valid_p (GSettings *settings, const char *key)
 {
@@ -253,6 +255,8 @@ xg_settings_key_valid_p (GSettings *settings, const char *key)
 #endif
 }
 
+#endif
+
 #ifdef HAVE_PGTK
 /* Store an event for re-rendering of the fonts.  */
 static void