diff --git a/lib/nvmf/rdma.c b/lib/nvmf/rdma.c
index 4e768e3ce..87714f710 100644
--- a/lib/nvmf/rdma.c
+++ b/lib/nvmf/rdma.c
@@ -1703,7 +1703,7 @@ spdk_nvmf_rdma_request_process(struct spdk_nvmf_rdma_transport *rtransport,
 #define SPDK_NVMF_RDMA_DEFAULT_IN_CAPSULE_DATA_SIZE 4096
 #define SPDK_NVMF_RDMA_DEFAULT_MAX_IO_SIZE 131072
 #define SPDK_NVMF_RDMA_MIN_IO_BUFFER_SIZE (SPDK_NVMF_RDMA_DEFAULT_MAX_IO_SIZE / SPDK_NVMF_MAX_SGL_ENTRIES)
-#define SPDK_NVMF_RDMA_DEFAULT_NUM_SHARED_BUFFERS 512
+#define SPDK_NVMF_RDMA_DEFAULT_NUM_SHARED_BUFFERS 4096
 #define SPDK_NVMF_RDMA_DEFAULT_BUFFER_CACHE_SIZE 32
 
 static void