diff --git a/sys/dev/ixgbe/ixgbe.h b/sys/dev/ixgbe/ixgbe.h
index 54a2f2de5b19..d0314b9ef4e1 100644
--- a/sys/dev/ixgbe/ixgbe.h
+++ b/sys/dev/ixgbe/ixgbe.h
@@ -154,6 +154,11 @@
 #define IXGBE_FC_HI		0x20000
 #define IXGBE_FC_LO		0x10000
 
+/* Keep older OS drivers building... */
+#if !defined(SYSCTL_ADD_UQUAD)
+#define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
+#endif
+
 /* Defines for printing debug information */
 #define DEBUG_INIT  0
 #define DEBUG_IOCTL 0