diff --git a/src/xprt_handshake.c b/src/xprt_handshake.c
index 752a4f3..15e2a8f 100644
--- a/src/xprt_handshake.c
+++ b/src/xprt_handshake.c
@@ -36,7 +36,8 @@
 	return 0;
 }
 
-static struct task *xprt_handshake_io_cb(struct task *t, void *bctx, unsigned short state)
+/* xprt_handshake_io_cb is exported to see it resolved in "show fd" */
+struct task *xprt_handshake_io_cb(struct task *t, void *bctx, unsigned short state)
 {
 	struct xprt_handshake_ctx *ctx = bctx;
 	struct connection *conn = ctx->conn;