diff --git a/doc/PKGBUILD.5.txt b/doc/PKGBUILD.5.txt
index 1b229aaf..4ac7dc11 100644
--- a/doc/PKGBUILD.5.txt
+++ b/doc/PKGBUILD.5.txt
@@ -30,7 +30,9 @@ Options and Directives
 ----------------------
 The following is a list of standard options and directives available for use
 in a PKGBUILD. These are all understood and interpreted by makepkg, and most
-of them will be directly transferred to the built package.
+of them will be directly transferred to the built package. The mandatory
+fields for a minimally functional PKGBUILD are *pkgname*, *pkgver*, *pkgrel*
+and *arch*.
 
 If you need to create any custom variables for use in your build process, it is
 recommended to prefix their name with an '_' (underscore).