diff --git a/resources/scripts/.appveyor-build-win.ps1 b/resources/scripts/.appveyor-build-win.ps1
index 005983d09..6ca761b2b 100644
--- a/resources/scripts/.appveyor-build-win.ps1
+++ b/resources/scripts/.appveyor-build-win.ps1
@@ -30,13 +30,13 @@ Invoke-WebRequest -Uri $qtbase_url -OutFile $output
 
 $qt_mysql_dir = "./qtbase-everywhere-src-5.14.2/src/plugins/sqldrivers"
 $mysql_d_rev = $mysql_dir.Replace('\', '/')
-$qmake_args_mysql = "`"MYSQL_INCDIR=$mysql_d_rev/include`" `"MYSQL_LIBDIR=$mysql_d_rev/lib`""
+$qmake_args_mysql = "MYSQL_INCDIR=$mysql_d_rev/include MYSQL_LIBDIR=$mysql_d_rev/lib"
 
 echo "$qmake_args_mysql"
 
 cd "$qt_mysql_dir"
 
-qmake.exe -- "$qmake_args_mysql"
+qmake.exe -- $qmake_args_mysql
 
 nmake.exe sub-mysql
 ls