diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index f4e4d21..f3ec9eb 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -542,6 +542,7 @@
 enum gsm_band gsm_band_parse(const char *mhz);
 
 extern void *tall_bsc_ctx;
+extern int ipacc_rtp_direct;
 
 static inline int is_ipaccess_bts(struct gsm_bts *bts)
 {
diff --git a/openbsc/src/bsc_hack.c b/openbsc/src/bsc_hack.c
index c0695ef..a9a5d37 100644
--- a/openbsc/src/bsc_hack.c
+++ b/openbsc/src/bsc_hack.c
@@ -41,7 +41,6 @@
 struct gsm_network *bsc_gsmnet = 0;
 static const char *database_name = "hlr.sqlite3";
 static const char *config_file = "openbsc.cfg";
-extern int ipacc_rtp_direct;
 
 extern int bsc_bootstrap_network(int (*mmc_rev)(struct gsm_network *, int, void *),
 				 const char *cfg_file);
diff --git a/openbsc/src/bsc_init.c b/openbsc/src/bsc_init.c
index 7065833..8450af6 100644
--- a/openbsc/src/bsc_init.c
+++ b/openbsc/src/bsc_init.c
@@ -35,7 +35,6 @@
 
 /* global pointer to the gsm network data structure */
 extern struct gsm_network *bsc_gsmnet;
-extern int ipacc_rtp_direct;
 
 static void patch_nm_tables(struct gsm_bts *bts);
 
diff --git a/openbsc/src/gsm_04_08.c b/openbsc/src/gsm_04_08.c
index 2271316..2985d38 100644
--- a/openbsc/src/gsm_04_08.c
+++ b/openbsc/src/gsm_04_08.c
@@ -57,8 +57,6 @@
 
 void *tall_locop_ctx;
 
-extern int ipacc_rtp_direct;
-
 static const struct tlv_definition rsl_att_tlvdef = {
 	.def = {
 		[GSM48_IE_MOBILE_ID]	= { TLV_TYPE_TLV },