Index: policyd-spf.1
--- policyd-spf.1.orig
+++ policyd-spf.1
@@ -256,7 +256,7 @@ followed by a empty line:
  1. Add the following to /etc/postfix/master.cf:
 
         policyd-spf  unix  -       n       n       -       0       spawn
-            user=nobody argv=/usr/bin/policyd-spf
+            user=nobody argv=${PREFIX}/bin/policyd-spf
 
     NOTE: Check the path to both the installed Python 3 interpreter and
           policyd-spf.  These vary from system to system.  To use non-default