diff --git a/share/man/man9/intro.9 b/share/man/man9/intro.9
index e1356672597..4b012d850f9 100644
--- a/share/man/man9/intro.9
+++ b/share/man/man9/intro.9
@@ -144,8 +144,6 @@ structures.
 The following functions are documented:
 .Bd -ragged -offset indent
 .Xr vm_page_advise 9 ,
-.Xr vm_page_alloc 9 ,
-.Xr vm_page_bits 9 ,
 .Xr vm_page_aflag 9 ,
 .Xr vm_page_alloc 9 ,
 .Xr vm_page_bits 9 ,