diff --git a/contrib/packages/deb/ubuntu-precise/debian/patches/504_tigervnc-cookie.patch b/contrib/packages/deb/ubuntu-precise/debian/patches/504_tigervnc-cookie.patch
deleted file mode 100644
index 1fc93c8..0000000
--- a/contrib/packages/deb/ubuntu-precise/debian/patches/504_tigervnc-cookie.patch
+++ /dev/null
@@ -1,36 +0,0 @@
---- a/unix/vncserver	2009-11-12 11:39:54.000000000 +0100
-+++ b/unix/vncserver	2009-12-21 16:15:01.907799091 +0100
-@@ -189,27 +189,12 @@ $vncPort = 5900 + $displayNumber;
- $desktopLog = "$vncUserDir/$host:$displayNumber.log";
- unlink($desktopLog);
- 
--# Make an X server cookie - use /dev/urandom on systems that have it,
--# otherwise use perl's random number generator, seeded with the sum
--# of the current time, our PID and part of the encrypted form of the password.
--
--my $cookie = "";
--if (open(URANDOM, '<', '/dev/urandom')) {
--  my $randata;
--  if (sysread(URANDOM, $randata, 16) == 16) {
--    $cookie = unpack 'h*', $randata;
--  }
--  close(URANDOM);
--}
--if ($cookie eq "") {
--  srand(time+$$+unpack("L",`cat $vncUserDir/passwd`));
--  for (1..16) {
--    $cookie .= sprintf("%02x", int(rand(256)) % 256);
--  }
--}
--
--system("xauth -f $xauthorityFile add $host:$displayNumber . $cookie");
--system("xauth -f $xauthorityFile add $host/unix:$displayNumber . $cookie"); 
-+# Make an X server cookie - use mcookie
-+$cookie = `/usr/bin/mcookie`;
-+open (XAUTH, "|xauth -f $xauthorityFile source -");
-+print XAUTH "add $host:$displayNumber . $cookie\n";
-+print XAUTH "add $host/unix:$displayNumber . $cookie\n";
-+close XAUTH;
- 
- if ($opt{'-name'}) {
-     $desktopName = $opt{'-name'};
diff --git a/contrib/packages/deb/ubuntu-precise/debian/patches/series b/contrib/packages/deb/ubuntu-precise/debian/patches/series
index 3a4ceba..b57b12a 100644
--- a/contrib/packages/deb/ubuntu-precise/debian/patches/series
+++ b/contrib/packages/deb/ubuntu-precise/debian/patches/series
@@ -5,5 +5,4 @@
 100_rethrow_signals.patch
 
 # Upstream patches
-504_tigervnc-cookie.patch
 516_tigervnc-xorg-manpages.patch
diff --git a/contrib/packages/deb/ubuntu-trusty/debian/patches/504_tigervnc-cookie.patch b/contrib/packages/deb/ubuntu-trusty/debian/patches/504_tigervnc-cookie.patch
deleted file mode 100644
index 1fc93c8..0000000
--- a/contrib/packages/deb/ubuntu-trusty/debian/patches/504_tigervnc-cookie.patch
+++ /dev/null
@@ -1,36 +0,0 @@
---- a/unix/vncserver	2009-11-12 11:39:54.000000000 +0100
-+++ b/unix/vncserver	2009-12-21 16:15:01.907799091 +0100
-@@ -189,27 +189,12 @@ $vncPort = 5900 + $displayNumber;
- $desktopLog = "$vncUserDir/$host:$displayNumber.log";
- unlink($desktopLog);
- 
--# Make an X server cookie - use /dev/urandom on systems that have it,
--# otherwise use perl's random number generator, seeded with the sum
--# of the current time, our PID and part of the encrypted form of the password.
--
--my $cookie = "";
--if (open(URANDOM, '<', '/dev/urandom')) {
--  my $randata;
--  if (sysread(URANDOM, $randata, 16) == 16) {
--    $cookie = unpack 'h*', $randata;
--  }
--  close(URANDOM);
--}
--if ($cookie eq "") {
--  srand(time+$$+unpack("L",`cat $vncUserDir/passwd`));
--  for (1..16) {
--    $cookie .= sprintf("%02x", int(rand(256)) % 256);
--  }
--}
--
--system("xauth -f $xauthorityFile add $host:$displayNumber . $cookie");
--system("xauth -f $xauthorityFile add $host/unix:$displayNumber . $cookie"); 
-+# Make an X server cookie - use mcookie
-+$cookie = `/usr/bin/mcookie`;
-+open (XAUTH, "|xauth -f $xauthorityFile source -");
-+print XAUTH "add $host:$displayNumber . $cookie\n";
-+print XAUTH "add $host/unix:$displayNumber . $cookie\n";
-+close XAUTH;
- 
- if ($opt{'-name'}) {
-     $desktopName = $opt{'-name'};
diff --git a/contrib/packages/deb/ubuntu-trusty/debian/patches/series b/contrib/packages/deb/ubuntu-trusty/debian/patches/series
index 3a4ceba..b57b12a 100644
--- a/contrib/packages/deb/ubuntu-trusty/debian/patches/series
+++ b/contrib/packages/deb/ubuntu-trusty/debian/patches/series
@@ -5,5 +5,4 @@
 100_rethrow_signals.patch
 
 # Upstream patches
-504_tigervnc-cookie.patch
 516_tigervnc-xorg-manpages.patch
diff --git a/contrib/packages/rpm/el5/SPECS/tigervnc.spec b/contrib/packages/rpm/el5/SPECS/tigervnc.spec
index daa7d89..3ef3455 100644
--- a/contrib/packages/rpm/el5/SPECS/tigervnc.spec
+++ b/contrib/packages/rpm/el5/SPECS/tigervnc.spec
@@ -141,7 +141,6 @@
 Obsoletes: tightvnc < 1.5.0-0.15.20090204svn3586
 
 # tigervnc patches
-Patch4: tigervnc-cookie.patch
 Patch12: tigervnc14-static-build-fixes.patch
 Patch13: tigervnc14-Add-dridir-param.patch
 Patch14: tigervnc14-Add-xkbcompdir-param.patch
@@ -298,7 +297,6 @@
 cp %SOURCE9 cmake/Modules/
 sed -i -e "s#@_includedir@#%{xorg_buildroot}%{_includedir}#" cmake/Modules/FindX11.cmake
 sed -i -e "s#@_libdir@#%{xorg_buildroot}%{_libdir}#" cmake/Modules/FindX11.cmake
-%patch4 -p1 -b .cookie
 %patch12 -p1 -b .static-build-fixes
 
 %if %{_bootstrap}
diff --git a/contrib/packages/rpm/el6/SPECS/tigervnc.spec b/contrib/packages/rpm/el6/SPECS/tigervnc.spec
index 1e07af5..1f68a5f 100644
--- a/contrib/packages/rpm/el6/SPECS/tigervnc.spec
+++ b/contrib/packages/rpm/el6/SPECS/tigervnc.spec
@@ -60,7 +60,6 @@
 Provides: tightvnc = 1.5.0-0.15.20090204svn3586
 Obsoletes: tightvnc < 1.5.0-0.15.20090204svn3586
 
-Patch4: tigervnc-cookie.patch
 Patch16: tigervnc-xorg-manpages.patch
 
 %description
@@ -161,8 +160,6 @@
 rm -rf $RPM_BUILD_ROOT
 %setup -q -n %{name}-%{version}%{?snap:-%{snap}}
 
-%patch4 -p1 -b .cookie
-
 %if %{_bootstrap}
 tar xzf %SOURCE11
 tar xjf %SOURCE13
diff --git a/contrib/packages/rpm/el7/SPECS/tigervnc.spec b/contrib/packages/rpm/el7/SPECS/tigervnc.spec
index d99547e..4420a7f 100644
--- a/contrib/packages/rpm/el7/SPECS/tigervnc.spec
+++ b/contrib/packages/rpm/el7/SPECS/tigervnc.spec
@@ -49,7 +49,6 @@
 Provides:       tightvnc = 1.5.0-0.15.20090204svn3586
 Obsoletes:      tightvnc < 1.5.0-0.15.20090204svn3586
 
-Patch4:         tigervnc-cookie.patch
 Patch17:        tigervnc-shebang.patch
 
 %description
@@ -155,7 +154,6 @@
 rm -rf $RPM_BUILD_ROOT
 %setup -q -n %{name}-%{version}%{?snap:-%{snap}}
 
-%patch4 -p1 -b .cookie
 %if %{_bootstrap}
 tar xzf %SOURCE11
 %endif