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-rw-r--r--contrib/test_shm_mq/setup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/contrib/test_shm_mq/setup.c b/contrib/test_shm_mq/setup.c
index e50f1f00139..3e762c49a6c 100644
--- a/contrib/test_shm_mq/setup.c
+++ b/contrib/test_shm_mq/setup.c
@@ -102,7 +102,7 @@ setup_dynamic_shared_memory(int64 queue_size, int nworkers,
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("queue size must be at least %lu bytes",
- shm_mq_minimum_size)));
+ (unsigned long) shm_mq_minimum_size)));
/*
* Estimate how much shared memory we need.