diff --git a/ext/theora/gsttheoradec.c b/ext/theora/gsttheoradec.c
index fdb8a835bb..81589c5d34 100644
--- a/ext/theora/gsttheoradec.c
+++ b/ext/theora/gsttheoradec.c
@@ -206,6 +206,10 @@ gst_theora_dec_init (GstTheoraDec * dec)
    * but is not marked that way so data gets parsed and keyframes marked */
   gst_video_decoder_set_packetized (GST_VIDEO_DECODER (dec), FALSE);
   gst_video_decoder_set_needs_format (GST_VIDEO_DECODER (dec), TRUE);
+
+  gst_video_decoder_set_use_default_pad_acceptcaps (GST_VIDEO_DECODER_CAST
+      (dec), TRUE);
+  GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (dec));
 }
 
 static gboolean