diff --git a/pgxn/neon/neon--1.6--1.7.sql b/pgxn/neon/neon--1.6--1.7.sql
index 6954849787..64a0d9bae4 100644
--- a/pgxn/neon/neon--1.6--1.7.sql
+++ b/pgxn/neon/neon--1.6--1.7.sql
@@ -1,3 +1,3 @@
-create function neon_communicator_min_inflight_request_lsn() returns pg_lsn
+create function neon_communicator_min_inflight_request_lsn() returns pg_catalog.pg_lsn
 AS 'MODULE_PATHNAME', 'neon_communicator_min_inflight_request_lsn'
 LANGUAGE C;