diff --git a/srpt/src/ib_srpt.c b/srpt/src/ib_srpt.c
index 6f6897431..d19e8682a 100644
--- a/srpt/src/ib_srpt.c
+++ b/srpt/src/ib_srpt.c
@@ -2021,7 +2021,7 @@ static void srpt_process_completion(struct ib_cq *cq,
 				    struct srpt_rdma_ch *ch,
 				    enum scst_exec_context context)
 {
-	struct ib_wc wc[16];
+	struct ib_wc wc[4];
 	int i, n;
 
 	EXTRACHECKS_WARN_ON(cq != ch->cq);