diff --git a/share/man/man4/man4.i386/sf.4 b/share/man/man4/man4.i386/sf.4
index 97629e0b035e..a525f25c3c81 100644
--- a/share/man/man4/man4.i386/sf.4
+++ b/share/man/man4/man4.i386/sf.4
@@ -146,8 +146,8 @@ the network connection (cable).
 .Xr netintro 4 , 
 .Xr ifconfig 8 ,
 .Rs
-.%T The Adaptec AIC-6915 programming manual
-.%O http://www.adaptec.com
+.%T The Adaptec AIC-6915 Programmer's Manual
+.%O ftp://ftp.adaptec.com/pub/BBS/userguides/aic6915_pg.pdf
 .Re
 .Sh HISTORY
 The
diff --git a/share/man/man4/sf.4 b/share/man/man4/sf.4
index 97629e0b035e..a525f25c3c81 100644
--- a/share/man/man4/sf.4
+++ b/share/man/man4/sf.4
@@ -146,8 +146,8 @@ the network connection (cable).
 .Xr netintro 4 , 
 .Xr ifconfig 8 ,
 .Rs
-.%T The Adaptec AIC-6915 programming manual
-.%O http://www.adaptec.com
+.%T The Adaptec AIC-6915 Programmer's Manual
+.%O ftp://ftp.adaptec.com/pub/BBS/userguides/aic6915_pg.pdf
 .Re
 .Sh HISTORY
 The
diff --git a/sys/dev/sf/if_sf.c b/sys/dev/sf/if_sf.c
index 59d9a89fc6ad..bc54fed0a8e5 100644
--- a/sys/dev/sf/if_sf.c
+++ b/sys/dev/sf/if_sf.c
@@ -34,7 +34,8 @@
 
 /*
  * Adaptec AIC-6915 "Starfire" PCI fast ethernet driver for FreeBSD.
- * Programming manual is available from www.adaptec.com.
+ * Programming manual is available from:
+ * ftp.adaptec.com:/pub/BBS/userguides/aic6915_pg.pdf.
  *
  * Written by Bill Paul <wpaul@ctr.columbia.edu>
  * Department of Electical Engineering
diff --git a/sys/pci/if_sf.c b/sys/pci/if_sf.c
index 59d9a89fc6ad..bc54fed0a8e5 100644
--- a/sys/pci/if_sf.c
+++ b/sys/pci/if_sf.c
@@ -34,7 +34,8 @@
 
 /*
  * Adaptec AIC-6915 "Starfire" PCI fast ethernet driver for FreeBSD.
- * Programming manual is available from www.adaptec.com.
+ * Programming manual is available from:
+ * ftp.adaptec.com:/pub/BBS/userguides/aic6915_pg.pdf.
  *
  * Written by Bill Paul <wpaul@ctr.columbia.edu>
  * Department of Electical Engineering