diff --git a/sys/compat/linuxkpi/common/include/linux/pci.h b/sys/compat/linuxkpi/common/include/linux/pci.h
--- a/sys/compat/linuxkpi/common/include/linux/pci.h
+++ b/sys/compat/linuxkpi/common/include/linux/pci.h
@@ -295,13 +295,17 @@
 	uint32_t			data;
 };
 
-struct msi_desc {
-	struct msi_msg			msg;
+struct pci_msi_desc {
 	struct {
 		bool			is_64;
 	} msi_attrib;
 };
 
+struct msi_desc {
+	struct msi_msg			msg;
+	struct pci_msi_desc		pci;
+};
+
 /*
  * If we find drivers accessing this from multiple KPIs we may have to
  * refcount objects of this structure.
diff --git a/sys/compat/linuxkpi/common/src/linux_pci.c b/sys/compat/linuxkpi/common/src/linux_pci.c
--- a/sys/compat/linuxkpi/common/src/linux_pci.c
+++ b/sys/compat/linuxkpi/common/src/linux_pci.c
@@ -1009,7 +1009,7 @@
 
 	desc = malloc(sizeof(*desc), M_DEVBUF, M_WAITOK | M_ZERO);
 
-	desc->msi_attrib.is_64 =
+	desc->pci.msi_attrib.is_64 =
 	   (msi->msi_ctrl & PCIM_MSICTRL_64BIT) ? true : false;
 	desc->msg.data = msi->msi_data;