--- a/utils/cfutil.in
+++ b/utils/cfutil.in
@@ -27,7 +27,7 @@ use common::sense;
 my $prefix      = "@prefix@";
 my $exec_prefix = "@exec_prefix@";
 my $datarootdir = "@datarootdir@";
-my $DATADIR     = "@datadir@/@PACKAGE@";
+my $DATADIR     = $ENV{'DELIANTRA_DATADIR'} || "@datadir@/@PACKAGE@";

 my $CONVERT  = "@CONVERT@";
 my $IDENTIFY = "@IDENTIFY@";