diff --git a/ext/opus/gstopusenc.c b/ext/opus/gstopusenc.c
index 016b891c81..9b475cf8c7 100644
--- a/ext/opus/gstopusenc.c
+++ b/ext/opus/gstopusenc.c
@@ -360,6 +360,7 @@ gst_opus_enc_stop (GstAudioEncoder * benc)
   gst_tag_list_free (enc->tags);
   enc->tags = NULL;
   g_slist_foreach (enc->headers, (GFunc) gst_buffer_unref, NULL);
+  g_slist_free (enc->headers);
   enc->headers = NULL;
   gst_tag_setter_reset_tags (GST_TAG_SETTER (enc));
 
@@ -885,6 +886,7 @@ gst_opus_enc_handle_frame (GstAudioEncoder * benc, GstBuffer * buf)
     GstCaps *caps;
 
     g_slist_foreach (enc->headers, (GFunc) gst_buffer_unref, NULL);
+    g_slist_free (enc->headers);
     enc->headers = NULL;
 
     gst_opus_header_create_caps (&caps, &enc->headers, enc->n_channels,