diff --git a/sys/dev/cxgb/cxgb_main.c b/sys/dev/cxgb/cxgb_main.c
index 92e5f2f82a1..810d8432c76 100644
--- a/sys/dev/cxgb/cxgb_main.c
+++ b/sys/dev/cxgb/cxgb_main.c
@@ -84,7 +84,9 @@ __FBSDID("$FreeBSD$");
 #include <sys/priv.h>
 #endif
 
+#ifdef IFNET_MULTIQUEUE
 #include <machine/intr_machdep.h>
+#endif
 
 static int cxgb_setup_msix(adapter_t *, int);
 static void cxgb_teardown_msix(adapter_t *);