diff --git a/src/modules/module-netjack2-manager.c b/src/modules/module-netjack2-manager.c
index f9883069a..fb9f65ebd 100644
--- a/src/modules/module-netjack2-manager.c
+++ b/src/modules/module-netjack2-manager.c
@@ -38,10 +38,6 @@
 #include "module-netjack2/peer.c"
 #include "network-utils.h"
 
-#ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
-#endif
-
 #ifndef IPTOS_DSCP
 #define IPTOS_DSCP_MASK 0xfc
 #define IPTOS_DSCP(x) ((x) & IPTOS_DSCP_MASK)
diff --git a/src/modules/module-rtp-sap.c b/src/modules/module-rtp-sap.c
index 9967fe515..199eb4817 100644
--- a/src/modules/module-rtp-sap.c
+++ b/src/modules/module-rtp-sap.c
@@ -29,7 +29,6 @@
 #include "network-utils.h"
 
 #ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
 #define SO_PASSCRED LOCAL_CREDS_PERSISTENT
 #endif
 
diff --git a/src/modules/module-rtp-session.c b/src/modules/module-rtp-session.c
index ad201f480..15bdfdae7 100644
--- a/src/modules/module-rtp-session.c
+++ b/src/modules/module-rtp-session.c
@@ -39,10 +39,6 @@
 #include <module-rtp/stream.h>
 #include "network-utils.h"
 
-#ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
-#endif
-
 /** \page page_module_rtp_session RTP session
  *
  * The `rtp-session` module creates a media session that is announced
diff --git a/src/modules/module-rtp-source.c b/src/modules/module-rtp-source.c
index e37a9df9b..64e3376f3 100644
--- a/src/modules/module-rtp-source.c
+++ b/src/modules/module-rtp-source.c
@@ -32,10 +32,6 @@
 #include <module-rtp/stream.h>
 #include "network-utils.h"
 
-#ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
-#endif
-
 /** \page page_module_rtp_source RTP source
  *
  * The `rtp-source` module creates a PipeWire source that receives audio
diff --git a/src/modules/module-vban-recv.c b/src/modules/module-vban-recv.c
index 0b61b9d5f..b13c76b40 100644
--- a/src/modules/module-vban-recv.c
+++ b/src/modules/module-vban-recv.c
@@ -32,10 +32,6 @@
 #include <module-vban/stream.h>
 #include "network-utils.h"
 
-#ifdef __FreeBSD__
-#define ifr_ifindex ifr_index
-#endif
-
 /** \page page_module_vban_recv VBAN receiver
  *
  * The `vban-recv` module creates a PipeWire source that receives audio
diff --git a/src/modules/network-utils.h b/src/modules/network-utils.h
index 720b049fd..25354f4c4 100644
--- a/src/modules/network-utils.h
+++ b/src/modules/network-utils.h
@@ -8,6 +8,10 @@
 #include <net/if.h>
 #include <errno.h>
 
+#ifdef __FreeBSD__
+#define ifr_ifindex ifr_index
+#endif
+
 static inline int pw_net_parse_address(const char *address, uint16_t port,
 		struct sockaddr_storage *addr, socklen_t *len)
 {