diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 26a32b7..7d976ac 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1110,6 +1110,16 @@
 		}
 
 /*
+ * NetworkDirect. This is the guest RDMA service.
+ * {8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501}
+ */
+#define HV_ND_GUID \
+	.guid = { \
+			0x3d, 0xaf, 0x2e, 0x8c, 0xa7, 0x32, 0x09, 0x4b, \
+			0xab, 0x99, 0xbd, 0x1f, 0x1c, 0x86, 0xb5, 0x01 \
+		}
+
+/*
  * Common header for Hyper-V ICs
  */