diff --git a/Makefile.init.in b/Makefile.init.in
index 0c705ff808..f292a0395b 100644
--- a/Makefile.init.in
+++ b/Makefile.init.in
@@ -28,7 +28,7 @@ exec_prefix=@exec_prefix@
 libdir=@libdir@
 
 # datadir is usually /usr/share/
-datadir=@datadir@
+datadir=$(prefix)/@DATADIRNAME@
 
 # localstatedir is usually /var/
 localstatedir=@localstatedir@