diff --git a/ext/pango/gstbasetextoverlay.c b/ext/pango/gstbasetextoverlay.c
index a8d82d0c2b..e76e2d21fa 100644
--- a/ext/pango/gstbasetextoverlay.c
+++ b/ext/pango/gstbasetextoverlay.c
@@ -377,11 +377,12 @@ gst_base_text_overlay_class_init (GstBaseTextOverlayClass * klass)
       g_param_spec_int ("deltax", "X position modifier",
           "Shift X position to the left or to the right. Unit is pixels.",
           G_MININT, G_MAXINT, DEFAULT_PROP_DELTAX,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+          GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
   g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DELTAY,
       g_param_spec_int ("deltay", "Y position modifier",
           "Shift Y position up or down. Unit is pixels.", G_MININT, G_MAXINT,
-          DEFAULT_PROP_DELTAY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+          GST_PARAM_CONTROLLABLE | DEFAULT_PROP_DELTAY,
+          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
   /**
    * GstBaseTextOverlay:xpos:
    *