diff --git a/ext/vorbis/gstvorbisdec.c b/ext/vorbis/gstvorbisdec.c
index 8b10d57ddd..7273d2c194 100644
--- a/ext/vorbis/gstvorbisdec.c
+++ b/ext/vorbis/gstvorbisdec.c
@@ -200,7 +200,7 @@ vorbis_handle_identification_packet (GstVorbisDec * vd)
   vd->info = info;
   /* select a copy_samples function, this way we can have specialized versions
    * for mono/stereo and avoid the depth switch in tremor case */
-  vd->copy_samples = get_copy_sample_func (info.channels);
+  vd->copy_samples = gst_vorbis_get_copy_sample_func (info.channels);
 
   return GST_FLOW_OK;
 }
diff --git a/ext/vorbis/gstvorbisdeclib.c b/ext/vorbis/gstvorbisdeclib.c
index 1079586e9c..e00358497d 100644
--- a/ext/vorbis/gstvorbisdeclib.c
+++ b/ext/vorbis/gstvorbisdeclib.c
@@ -82,7 +82,7 @@ copy_samples (vorbis_sample_t * out, vorbis_sample_t ** in, guint samples,
 }
 
 CopySampleFunc
-get_copy_sample_func (gint channels)
+gst_vorbis_get_copy_sample_func (gint channels)
 {
   CopySampleFunc f = NULL;
 
diff --git a/ext/vorbis/gstvorbisdeclib.h b/ext/vorbis/gstvorbisdeclib.h
index cbb4fdfb2a..7f711a7bad 100644
--- a/ext/vorbis/gstvorbisdeclib.h
+++ b/ext/vorbis/gstvorbisdeclib.h
@@ -62,6 +62,7 @@
 #define GstVorbisDec GstIVorbisDec
 #define GstVorbisDecClass GstIVorbisDecClass
 #define gst_vorbis_dec_get_type gst_ivorbis_dec_get_type
+#define gst_vorbis_get_copy_sample_func gst_ivorbis_get_copy_sample_func
 
 #endif /* TREMOR */
 
@@ -187,6 +188,6 @@ gst_ogg_packet_from_wrapper (ogg_packet_wrapper * packet)
 typedef void (*CopySampleFunc)(vorbis_sample_t *out, vorbis_sample_t **in,
                            guint samples, gint channels);
 
-CopySampleFunc get_copy_sample_func (gint channels);
+CopySampleFunc gst_vorbis_get_copy_sample_func (gint channels);
 
 #endif /* __GST_VORBIS_DEC_LIB_H__ */