diff --git a/lib/dnssdint.h b/lib/dnssdint.h
index 6c07adf..862316b 100644
--- a/lib/dnssdint.h
+++ b/lib/dnssdint.h
@@ -4,10 +4,12 @@
 #include "global.h"
 #define RAOP_TXTVERS "1"
 #define RAOP_CH "2"             /* Audio channels: 2 */
-#define RAOP_CN "0,1,2,3"           /* Audio codec: PCM, ALAC, AAC, AAC ELD */
-#define RAOP_ET "0,3,5"           /* Encryption type: None, FairPlay, FairPlay SAPv2.5 */
+#define RAOP_CN "0,1,2,3"       /* Audio codec: PCM, ALAC, AAC, AAC ELD */
+#define RAOP_ET "0,3,5"         /* Encryption type: None, FairPlay, FairPlay SAPv2.5 */
 #define RAOP_VV "2"
-#define RAOP_FT "0x5A7FFEE6"
+#define FEATURES_1 "0x5A7FFEE6" /* first 32 bits of features */
+#define FEATURES_2 "0x0"        /* second 32 bits of features */
+#define RAOP_FT FEATURES_1 "," FEATURES_2
 #define RAOP_RHD "5.6.0.0"
 #define RAOP_SF "0x4"
 #define RAOP_SV "false"
@@ -20,9 +22,9 @@
 #define RAOP_VN "65537"
 #define RAOP_PK "b07727d6f6cd6e08b58ede525ec3cdeaa252ad9f683feb212ef8a205246554e7"
 
-
-#define AIRPLAY_FEATURES_1 "0x5A7FFEE6"  /* first 32 bits of features */
-#define AIRPLAY_FEATURES_2 "0x0"         /* second 32 bits of features */
+/* use same features for RAOP and AIRPLAY: is this correct? */
+#define AIRPLAY_FEATURES_1 FEATURES_1
+#define AIRPLAY_FEATURES_2 FEATURES_2
 #define AIRPLAY_FEATURES  AIRPLAY_FEATURES_1 "," AIRPLAY_FEATURES_2 
 #define AIRPLAY_SRCVERS GLOBAL_VERSION /*defined in global.h */
 #define AIRPLAY_FLAGS "0x4"