diff --git a/lib/ioat/ioat.c b/lib/ioat/ioat.c
index ef7c215a6..5cdc17bff 100644
--- a/lib/ioat/ioat.c
+++ b/lib/ioat/ioat.c
@@ -465,7 +465,7 @@ ioat_channel_start(struct spdk_ioat_chan *ioat)
 
 /* Caller must hold g_ioat_driver.lock */
 static struct spdk_ioat_chan *
-ioat_attach(void *device)
+ioat_attach(struct spdk_pci_device *device)
 {
 	struct spdk_ioat_chan *ioat;
 	uint32_t cmd_reg;
diff --git a/lib/ioat/ioat_internal.h b/lib/ioat/ioat_internal.h
index 81cffff52..18e9ef931 100644
--- a/lib/ioat/ioat_internal.h
+++ b/lib/ioat/ioat_internal.h
@@ -52,7 +52,7 @@ struct ioat_descriptor {
 /* One of these per allocated PCI device. */
 struct spdk_ioat_chan {
 	/* Opaque handle to upper layer */
-	void                *device;
+	struct spdk_pci_device		*device;
 	uint64_t            max_xfer_size;
 	volatile struct spdk_ioat_registers *regs;