diff --git a/install_minimal/upgrades/airtime-1.9.2/airtime-upgrade.php b/install_minimal/upgrades/airtime-1.9.2/airtime-upgrade.php
index 17072ddd1..7bc0d573a 100644
--- a/install_minimal/upgrades/airtime-1.9.2/airtime-upgrade.php
+++ b/install_minimal/upgrades/airtime-1.9.2/airtime-upgrade.php
@@ -121,7 +121,7 @@
                                  AirtimeIni192::CONF_FILE_LIQUIDSOAP);
     
             // Backup the config files
-            $suffix = date("Ymdhis")."-1.9.0";
+            $suffix = date("Ymdhis")."-1.9.2";
             foreach ($configFiles as $conf) {
                 if (file_exists($conf)) {
                     echo "Backing up $conf to $conf$suffix.bak".PHP_EOL;
diff --git a/install_minimal/upgrades/airtime-1.9.3/airtime-upgrade.php b/install_minimal/upgrades/airtime-1.9.3/airtime-upgrade.php
index 7f167522b..d68d06df5 100644
--- a/install_minimal/upgrades/airtime-1.9.3/airtime-upgrade.php
+++ b/install_minimal/upgrades/airtime-1.9.3/airtime-upgrade.php
@@ -121,7 +121,7 @@
                                  AirtimeIni193::CONF_FILE_LIQUIDSOAP);
     
             // Backup the config files
-            $suffix = date("Ymdhis")."-1.9.0";
+            $suffix = date("Ymdhis")."-1.9.3";
             foreach ($configFiles as $conf) {
                 if (file_exists($conf)) {
                     echo "Backing up $conf to $conf$suffix.bak".PHP_EOL;