diff --git a/tests/posix/headers/prj.conf b/tests/posix/headers/prj.conf
index e64b889585a0..950a7d510ef1 100644
--- a/tests/posix/headers/prj.conf
+++ b/tests/posix/headers/prj.conf
@@ -10,6 +10,9 @@ CONFIG_TEST_RANDOM_GENERATOR=y
 CONFIG_NET_SOCKETS=y
 CONFIG_NETWORKING=y
 
+# for socketpair to work
+CONFIG_NET_SOCKETPAIR=y
+
 # for when CONFIG_POSIX_API is not selected
 CONFIG_PTHREAD_IPC=y
 CONFIG_POSIX_FS=y