diff --git a/ext/flac/gstflacdec.c b/ext/flac/gstflacdec.c
index 62ac391dca..515ffbda7b 100644
--- a/ext/flac/gstflacdec.c
+++ b/ext/flac/gstflacdec.c
@@ -179,6 +179,9 @@ static void
 gst_flac_dec_init (GstFlacDec * flacdec)
 {
   gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (flacdec), TRUE);
+  gst_audio_decoder_set_use_default_pad_acceptcaps (GST_AUDIO_DECODER_CAST
+      (flacdec), TRUE);
+  GST_PAD_SET_ACCEPT_TEMPLATE (GST_AUDIO_DECODER_SINK_PAD (flacdec));
 }
 
 static gboolean
diff --git a/ext/speex/gstspeexdec.c b/ext/speex/gstspeexdec.c
index 587255d7ba..daceaeea4f 100644
--- a/ext/speex/gstspeexdec.c
+++ b/ext/speex/gstspeexdec.c
@@ -156,6 +156,9 @@ static void
 gst_speex_dec_init (GstSpeexDec * dec)
 {
   gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (dec), TRUE);
+  gst_audio_decoder_set_use_default_pad_acceptcaps (GST_AUDIO_DECODER_CAST
+      (dec), TRUE);
+  GST_PAD_SET_ACCEPT_TEMPLATE (GST_AUDIO_DECODER_SINK_PAD (dec));
 
   dec->enh = DEFAULT_ENH;
 
diff --git a/ext/wavpack/gstwavpackdec.c b/ext/wavpack/gstwavpackdec.c
index 9f9fd5363b..f939390488 100644
--- a/ext/wavpack/gstwavpackdec.c
+++ b/ext/wavpack/gstwavpackdec.c
@@ -142,6 +142,9 @@ gst_wavpack_dec_init (GstWavpackDec * dec)
   dec->stream_reader = gst_wavpack_stream_reader_new ();
 
   gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (dec), TRUE);
+  gst_audio_decoder_set_use_default_pad_acceptcaps (GST_AUDIO_DECODER_CAST
+      (dec), TRUE);
+  GST_PAD_SET_ACCEPT_TEMPLATE (GST_AUDIO_DECODER_SINK_PAD (dec));
 
   gst_wavpack_dec_reset (dec);
 }
diff --git a/gst/law/alaw-decode.c b/gst/law/alaw-decode.c
index 8ef75d2db0..88df489ae6 100644
--- a/gst/law/alaw-decode.c
+++ b/gst/law/alaw-decode.c
@@ -224,4 +224,7 @@ static void
 gst_alaw_dec_init (GstALawDec * alawdec)
 {
   gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (alawdec), TRUE);
+  gst_audio_decoder_set_use_default_pad_acceptcaps (GST_AUDIO_DECODER_CAST
+      (alawdec), TRUE);
+  GST_PAD_SET_ACCEPT_TEMPLATE (GST_AUDIO_DECODER_SINK_PAD (alawdec));
 }
diff --git a/gst/law/mulaw-decode.c b/gst/law/mulaw-decode.c
index a4bd0a644b..4d463bcde8 100644
--- a/gst/law/mulaw-decode.c
+++ b/gst/law/mulaw-decode.c
@@ -169,4 +169,7 @@ static void
 gst_mulawdec_init (GstMuLawDec * mulawdec)
 {
   gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (mulawdec), TRUE);
+  gst_audio_decoder_set_use_default_pad_acceptcaps (GST_AUDIO_DECODER_CAST
+      (mulawdec), TRUE);
+  GST_PAD_SET_ACCEPT_TEMPLATE (GST_AUDIO_DECODER_SINK_PAD (mulawdec));
 }