diff --git a/tools/testing/selftests/bpf/prog_tests/user_ringbuf.c b/tools/testing/selftests/bpf/prog_tests/user_ringbuf.c
index e51721df14fc..dfff6feac12c 100644
--- a/tools/testing/selftests/bpf/prog_tests/user_ringbuf.c
+++ b/tools/testing/selftests/bpf/prog_tests/user_ringbuf.c
@@ -4,6 +4,7 @@
 #define _GNU_SOURCE
 #include <linux/compiler.h>
 #include <linux/ring_buffer.h>
+#include <linux/build_bug.h>
 #include <pthread.h>
 #include <stdio.h>
 #include <stdlib.h>