diff --git a/tools/fast_sums b/tools/fast_sums
index 70dbf8ef..1501d6b3 100755
--- a/tools/fast_sums
+++ b/tools/fast_sums
@@ -1,7 +1,4 @@
 #! /usr/bin/perl -w
-    eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
-        if 0; #$running_under_some_shell
-
 # Copyright (c) 2002 Philip Hands <phil@hands.com>
 # See the README file for the license
 
diff --git a/tools/master2tasks b/tools/master2tasks
index 0bde7f42..8f139911 100755
--- a/tools/master2tasks
+++ b/tools/master2tasks
@@ -13,11 +13,10 @@ my $codename = $ENV{'CODENAME'};
 my $basedir = $ENV{'BASEDIR'};
 my @archs = qw(alpha arm i386 m68k powerpc sparc);
 my $master = "$basedir/data/$codename/master";
-my $slice = "/usr/bin/slice";
 
 # Creating master.* files
 chdir $ENV{'TDIR'};
-system "$slice $master";
+system "slice $master";
 
 # Loop over all archs
 my $arch;
diff --git a/tools/my-dpkg-scanpackages b/tools/my-dpkg-scanpackages
index 146e91a7..aaf9c07d 100755
--- a/tools/my-dpkg-scanpackages
+++ b/tools/my-dpkg-scanpackages
@@ -174,7 +174,7 @@ sub writelist {
 @samemaint=();
 
 if ($override =~ /\.gz$/) {
-open(O, "/bin/zcat $override|")
+open(O, "zcat $override|")
     or die "Couldn't open override file $override: $!\n";
 } else {
 open(O, $override)
diff --git a/tools/publish_cds b/tools/publish_cds
index b60c877e..19640034 100755
--- a/tools/publish_cds
+++ b/tools/publish_cds
@@ -1,7 +1,4 @@
 #! /usr/bin/perl -w
-    eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
-        if 0; #$running_under_some_shell
-
 # $Id$
 
 # Copyright (c) 2002 Philip Hands <phil@hands.com>