diff --git a/ext/faac/gstfaac.c b/ext/faac/gstfaac.c
index 2f55f40e69..3425b4932e 100644
--- a/ext/faac/gstfaac.c
+++ b/ext/faac/gstfaac.c
@@ -359,7 +359,7 @@ gst_faac_getcaps (GstAudioEncoder * enc, GstCaps * filter)
     g_once_init_leave (&sinkcaps, (gsize) tmp);
   }
 
-  return gst_audio_encoder_proxy_getcaps (enc, (GstCaps *) sinkcaps);
+  return gst_audio_encoder_proxy_getcaps (enc, (GstCaps *) sinkcaps, filter);
 }
 
 static gboolean
diff --git a/ext/voaacenc/gstvoaacenc.c b/ext/voaacenc/gstvoaacenc.c
index 09bb0534a3..b70a0288a1 100644
--- a/ext/voaacenc/gstvoaacenc.c
+++ b/ext/voaacenc/gstvoaacenc.c
@@ -306,7 +306,8 @@ gst_voaacenc_get_sink_caps (void)
 static GstCaps *
 gst_voaacenc_getcaps (GstAudioEncoder * benc, GstCaps * filter)
 {
-  return gst_audio_encoder_proxy_getcaps (benc, gst_voaacenc_get_sink_caps ());
+  return gst_audio_encoder_proxy_getcaps (benc, gst_voaacenc_get_sink_caps (),
+      filter);
 }
 
 /* check downstream caps to configure format */