diff --git a/src/psi.c b/src/psi.c
index c0cd9057..9eabd384 100644
--- a/src/psi.c
+++ b/src/psi.c
@@ -511,10 +511,13 @@ psi_parse_pmt(th_transport_t *t, const uint8_t *ptr, int len, int chksvcid,
 
     case 0x03:
     case 0x04:
-    case 0x81:
       hts_stream_type = SCT_MPEG2AUDIO;
       break;
 
+    case 0x81:
+      hts_stream_type = SCT_AC3;
+      break;
+
     case 0x11:
       hts_stream_type = SCT_AAC;
       break;