diff --git a/libmpcodecs/ad_hwac3.c b/libmpcodecs/ad_hwac3.c
index 1ac2a5155e..dba0d98403 100644
--- a/libmpcodecs/ad_hwac3.c
+++ b/libmpcodecs/ad_hwac3.c
@@ -128,14 +128,17 @@ static int init(sh_audio_t *sh_audio)
   }
   if(ac3dts_fillbuff(sh_audio) < 0)
   {
+    a52_free(a52_state);
     mp_msg(MSGT_DECAUDIO, MSGL_ERR, "AC3/DTS sync failed\n");
     return 0;
   }
+  sh_audio->context = a52_state;
   return 1;
 }
 
 static void uninit(sh_audio_t *sh)
 {
+  a52_free(sh->context);
 }
 
 static int control(sh_audio_t *sh,int cmd,void* arg, ...)
diff --git a/libmpcodecs/ad_liba52.c b/libmpcodecs/ad_liba52.c
index 604ed71c48..8c32c81319 100644
--- a/libmpcodecs/ad_liba52.c
+++ b/libmpcodecs/ad_liba52.c
@@ -253,6 +253,7 @@ while(sh_audio->channels>0){
 
 static void uninit(sh_audio_t *sh)
 {
+  a52_free(a52_state);
 }
 
 static int control(sh_audio_t *sh,int cmd,void* arg, ...)