diff --git a/libmpdemux/demux_mpc.c b/libmpdemux/demux_mpc.c
index 0f7b18da2f..cb4eda3604 100644
--- a/libmpdemux/demux_mpc.c
+++ b/libmpdemux/demux_mpc.c
@@ -27,8 +27,6 @@ typedef struct da_priv {
   float length;
 } da_priv_t;
 
-extern void free_sh_audio(sh_audio_t* sh);
-
 static uint32_t get_bits(da_priv_t* priv, stream_t* s, int bits) {
   uint32_t out = priv->dword;
   uint32_t mask = (1 << bits) - 1;