diff --git a/subprojects/gst-plugins-bad/gst/frei0r/gstfrei0r.c b/subprojects/gst-plugins-bad/gst/frei0r/gstfrei0r.c
index 6a00934e81..c42fba3057 100644
--- a/subprojects/gst-plugins-bad/gst/frei0r/gstfrei0r.c
+++ b/subprojects/gst-plugins-bad/gst/frei0r/gstfrei0r.c
@@ -415,6 +415,7 @@ gst_frei0r_set_property (f0r_instance_t * instance, GstFrei0rFuncTable * ftable,
       /* Copies the string */
       if (instance)
         ftable->set_param_value (instance, s, prop->prop_idx);
+      g_free (property_cache[prop->prop_idx].data.s);
       property_cache[prop->prop_idx].data.s = s;
       break;
     }