diff --git a/src/edit.c b/src/edit.c
index 33e580f..88943cd 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -6272,7 +6272,7 @@
 		    )
 	    textwidth -= 1;
 #endif
-	if (curwin->w_p_nu)
+	if (curwin->w_p_nu || curwin->w_p_rnu)
 	    textwidth -= 8;
     }
     if (textwidth < 0)