diff --git a/src/util/virnetdevopenvswitch.h b/src/util/virnetdevopenvswitch.h
index 021eba9d3a..7380a2d84b 100644
--- a/src/util/virnetdevopenvswitch.h
+++ b/src/util/virnetdevopenvswitch.h
@@ -59,6 +59,6 @@ int virNetDevOpenvswitchInterfaceStats(const char *ifname,
 
 int virNetDevOpenvswitchGetVhostuserIfname(const char *path,
                                            char **ifname)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
+    ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
 
 #endif /* __VIR_NETDEV_OPENVSWITCH_H__ */