diff --git a/adapter/syscall/ff_socket_ops.c b/adapter/syscall/ff_socket_ops.c
index 6458a942f..4441801dd 100644
--- a/adapter/syscall/ff_socket_ops.c
+++ b/adapter/syscall/ff_socket_ops.c
@@ -1,3 +1,5 @@
+#include <errno.h>
+
 #include <rte_memcpy.h>
 #include <rte_spinlock.h>
 #ifdef FF_USE_RING_IPC