diff --git a/tools/qtbuild-qmysql-driver.ps1 b/tools/qtbuild-qmysql-driver.ps1
index 96ebca0c8..28e642ef7 100644
--- a/tools/qtbuild-qmysql-driver.ps1
+++ b/tools/qtbuild-qmysql-driver.ps1
@@ -14,7 +14,7 @@ Param(
         HelpMessage = 'Specifies the MySQL Server version against which to build ' +
             'the QMYSQL driver (version number of the MySQL Server installation folder).')]
     [ValidateNotNullOrEmpty()]
-    [ValidatePattern('^[8-12]\.\d{1,2}\$',
+    [ValidatePattern('^(?:[8-9]|1[0-2])\.\d{1,2}$',
         ErrorMessage = 'The argument "{0}" is not the correct Qt version number. ' +
         'The argument "{0}" does not match the "{1}" pattern.')]
     [string] $MySQLVersion = '8.4',