diff --git a/install/dist/lib/debian60.lib.php b/install/dist/lib/debian60.lib.php
index 981e6cff92a70216656435bddb10a393f01dca54..e6a6ec90aaa0b5fe9b90be907257e2ebf173ee5c 100644
--- a/install/dist/lib/debian60.lib.php
+++ b/install/dist/lib/debian60.lib.php
@@ -61,7 +61,7 @@ class installer extends installer_base {
 			if(is_file($config_dir.'/master.cf')){
 				copy($config_dir.'/master.cf', $config_dir.'/master.cf~2');
 			}
-			if(is_file($config_dir.'/master.cf~')){
+			if(is_file($config_dir.'/master.cf~2')){
 				chmod($config_dir.'/master.cf~2', 0400);
 			}
 			//* Configure master.cf and add a line for deliver
diff --git a/install/dist/lib/fedora.lib.php b/install/dist/lib/fedora.lib.php
index 71809ac81ea0ec084a5dfa83031e3bb2e7859da2..5d578e329e2a1d2d773965dc6a9c7591ab67753b 100644
--- a/install/dist/lib/fedora.lib.php
+++ b/install/dist/lib/fedora.lib.php
@@ -144,7 +144,7 @@ class installer_dist extends installer_base {
 			if(is_file($config_dir.'/master.cf')){
 				copy($config_dir.'/master.cf', $config_dir.'/master.cf~2');
 			}
-			if(is_file($config_dir.'/master.cf~')){
+			if(is_file($config_dir.'/master.cf~2')){
 				chmod($config_dir.'/master.cf~2', 0400);
 			}
 			//* Configure master.cf and add a line for deliver
diff --git a/install/dist/lib/gentoo.lib.php b/install/dist/lib/gentoo.lib.php
index ef660d950d6c8a2a483efaccca5a2d511f9fa0ef..574cb10f670910bdbf7d6539fcfa5b18f9843a97 100644
--- a/install/dist/lib/gentoo.lib.php
+++ b/install/dist/lib/gentoo.lib.php
@@ -399,7 +399,7 @@ class installer extends installer_base
 			if(is_file($config_dir.'/master.cf')){
 				copy($config_dir.'/master.cf', $config_dir.'/master.cf~2');
 			}
-			if(is_file($config_dir.'/master.cf~')){
+			if(is_file($config_dir.'/master.cf~2')){
 				chmod($config_dir.'/master.cf~2', 0400);
 			}
 			//* Configure master.cf and add a line for deliver
diff --git a/install/dist/lib/opensuse.lib.php b/install/dist/lib/opensuse.lib.php
index 7cc368a14e3fdab0351f06f6c088c9c1d6611257..1a4ca1d07af47a62ceafd31afab3e5959226bfbb 100644
--- a/install/dist/lib/opensuse.lib.php
+++ b/install/dist/lib/opensuse.lib.php
@@ -383,7 +383,7 @@ class installer_dist extends installer_base {
 			if(is_file($config_dir.'/master.cf')){
 				copy($config_dir.'/master.cf', $config_dir.'/master.cf~2');
 			}
-			if(is_file($config_dir.'/master.cf~')){
+			if(is_file($config_dir.'/master.cf~2')){
 				chmod($config_dir.'/master.cf~2', 0400);
 			}
 			//* Configure master.cf and add a line for deliver
diff --git a/install/lib/installer_base.lib.php b/install/lib/installer_base.lib.php
index 004167022527de3c9f3a0ec91ff838f9e49fbba9..09ecc82e212fd29ed5786ea5907b0924c7a97add 100644
--- a/install/lib/installer_base.lib.php
+++ b/install/lib/installer_base.lib.php
@@ -1539,7 +1539,7 @@ class installer_base extends stdClass {
 			if(is_file($config_dir.'/master.cf')){
 				copy($config_dir.'/master.cf', $config_dir.'/master.cf~2');
 			}
-			if(is_file($config_dir.'/master.cf~')){
+			if(is_file($config_dir.'/master.cf~2')){
 				chmod($config_dir.'/master.cf~2', 0400);
 			}
 			//* Configure master.cf and add a line for deliver