diff --git a/CHANGELOG b/CHANGELOG
index 35237497..6fa420da 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -6,6 +6,9 @@ Version 1.3
 
 	Pony symliks: sindy → powderrouge
 
+	PREFIX=/some-dir can be used when invoking make, the default value is /usr
+
+
 Version 1.2
 
 	ponyquotes4ponysay is included.
diff --git a/manuals/ponysay.texinfo b/manuals/ponysay.texinfo
index 9f50212b..1d6644e0 100644
--- a/manuals/ponysay.texinfo
+++ b/manuals/ponysay.texinfo
@@ -829,6 +829,8 @@ Pony symlinks added:
 @itemize @bullet
 @item @code{sindy} → @code{powderrouge}
 @end itemize
+@item
+@code{PREFIX=/some-dir} can be used when invoking @command{make}, the default value is @code{/usr}
 @end itemize
 
 @heading Version 1.2