diff --git a/src/nm-device.h b/src/nm-device.h
index 2c234f0455..6a04d596d4 100644
--- a/src/nm-device.h
+++ b/src/nm-device.h
@@ -60,8 +60,6 @@ struct _NMDevice
 	NMDevicePrivate *priv;
 };
 
-struct NMData;
-
 struct _NMDeviceClass
 {
 	GObjectClass parent;