--- a/cgi-bin/pgcluu.cgi
+++ b/cgi-bin/pgcluu.cgi
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 #------------------------------------------------------------------------------
 #
 # PgCluu - PostgreSQL monitoring tool with statistics collector and grapher
--- a/pgcluu
+++ b/pgcluu
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 #------------------------------------------------------------------------------
 #
 # PgCluu - PostgreSQL monitoring tool with statistics collector and grapher
--- a/pgcluu_collectd
+++ b/pgcluu_collectd
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 #------------------------------------------------------------------------------
 #
 # PgCluu - PostgreSQL monitoring tool with statistics collector and grapher
--- a/tools/updt_embedded_rsc.pl
+++ b/tools/updt_embedded_rsc.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/env perl
+#!/usr/bin/perl
 #-----------------------------------------------------------------------------
 #
 # Script used to update javascript and css files embedded into pgcluu.
