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-rw-r--r--src/test/modules/libpq_pipeline/libpq_pipeline.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/test/modules/libpq_pipeline/libpq_pipeline.c b/src/test/modules/libpq_pipeline/libpq_pipeline.c
index 9907bc86004..ada16f1db5a 100644
--- a/src/test/modules/libpq_pipeline/libpq_pipeline.c
+++ b/src/test/modules/libpq_pipeline/libpq_pipeline.c
@@ -929,7 +929,7 @@ test_prepared(PGconn *conn)
if (PQresultStatus(res) != PGRES_COMMAND_OK)
pg_fatal("expected COMMAND_OK, got %s", PQresStatus(PQresultStatus(res)));
if (PQnfields(res) != lengthof(expected_oids))
- pg_fatal("expected %zd columns, got %d",
+ pg_fatal("expected %zu columns, got %d",
lengthof(expected_oids), PQnfields(res));
for (int i = 0; i < PQnfields(res); i++)
{