diff --git a/net/core/lwt_bpf.c b/net/core/lwt_bpf.c
index 71bb3e2..40ef8ae 100644
--- a/net/core/lwt_bpf.c
+++ b/net/core/lwt_bpf.c
@@ -352,7 +352,7 @@
 	       0;
 }
 
-int bpf_lwt_prog_cmp(struct bpf_lwt_prog *a, struct bpf_lwt_prog *b)
+static int bpf_lwt_prog_cmp(struct bpf_lwt_prog *a, struct bpf_lwt_prog *b)
 {
 	/* FIXME:
 	 * The LWT state is currently rebuilt for delete requests which