diff --git a/src/modules/module-avb/maap.c b/src/modules/module-avb/maap.c
index ecdcd67b9..c0d7fc536 100644
--- a/src/modules/module-avb/maap.c
+++ b/src/modules/module-avb/maap.c
@@ -22,6 +22,8 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
+#include <unistd.h>
+
 #include <pipewire/pipewire.h>
 
 #include "maap.h"
diff --git a/src/modules/module-avb/mmrp.c b/src/modules/module-avb/mmrp.c
index 147978f18..022aea8b3 100644
--- a/src/modules/module-avb/mmrp.c
+++ b/src/modules/module-avb/mmrp.c
@@ -22,6 +22,8 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
+#include <unistd.h>
+
 #include <pipewire/pipewire.h>
 
 #include "utils.h"
diff --git a/src/modules/module-avb/msrp.c b/src/modules/module-avb/msrp.c
index 1d0649635..3f348797f 100644
--- a/src/modules/module-avb/msrp.c
+++ b/src/modules/module-avb/msrp.c
@@ -22,6 +22,8 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
+#include <unistd.h>
+
 #include <spa/debug/mem.h>
 
 #include <pipewire/pipewire.h>
diff --git a/src/modules/module-avb/mvrp.c b/src/modules/module-avb/mvrp.c
index f9c541bd9..9d42d257e 100644
--- a/src/modules/module-avb/mvrp.c
+++ b/src/modules/module-avb/mvrp.c
@@ -22,6 +22,8 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
+#include <unistd.h>
+
 #include <pipewire/pipewire.h>
 
 #include "mvrp.h"