diff --git a/src/modules/microdds_client/microdds_client.cpp b/src/modules/microdds_client/microdds_client.cpp
index 22f3b9f484..2e22d9c304 100644
--- a/src/modules/microdds_client/microdds_client.cpp
+++ b/src/modules/microdds_client/microdds_client.cpp
@@ -33,6 +33,7 @@
 
 #include <px4_platform_common/getopt.h>
 #include <px4_platform_common/cli.h>
+#include <px4_platform_common/posix.h>
 
 #include "microdds_client.h"