diff --git a/qga/installer/qemu-ga.wxs b/qga/installer/qemu-ga.wxs
index 4e917a9241..dcd3e36647 100644
--- a/qga/installer/qemu-ga.wxs
+++ b/qga/installer/qemu-ga.wxs
@@ -42,7 +42,7 @@
   <Product
     Name="QEMU guest agent"
     Id="*"
-    UpgradeCode="{EB6B8302-C06E-4bec-ADAC-932C68A3A98D}"
+    UpgradeCode="{EB6B8302-C06E-4BEC-ADAC-932C68A3A98D}"
     Manufacturer="$(env.QEMU_GA_MANUFACTURER)"
     Version="$(env.QEMU_GA_VERSION)"
     Language="1033">
@@ -69,7 +69,7 @@
     <Directory Id="TARGETDIR" Name="SourceDir">
       <Directory Id="$(var.GaProgramFilesFolder)" Name="QEMU Guest Agent">
         <Directory Id="qemu_ga_directory" Name="Qemu-ga">
-          <Component Id="qemu_ga" Guid="{908B7199-DE2A-4dc6-A8D0-27A5AE444FEA}">
+          <Component Id="qemu_ga" Guid="{908B7199-DE2A-4DC6-A8D0-27A5AE444FEA}">
             <File Id="qemu_ga.exe" Name="qemu-ga.exe" Source="../../qemu-ga.exe" KeyPath="yes" DiskId="1"/>
             <?ifdef var.InstallVss ?>
             <File Id="qga_vss.dll" Name="qga-vss.dll" Source="../vss-win32/qga-vss.dll" KeyPath="no" DiskId="1"/>
@@ -98,7 +98,7 @@
             <ServiceControl Id="StartService" Start="install" Stop="both" Remove="uninstall" Name="QEMU-GA" Wait="no" />
           </Component>
 
-          <Component Id="registry_entries" Guid="d075d109-51ca-11e3-9f8b-000c29858960">
+          <Component Id="registry_entries" Guid="{D075D109-51CA-11E3-9F8B-000C29858960}">
             <RegistryKey Root="HKLM"
                          Key="Software\$(env.QEMU_GA_MANUFACTURER)\$(env.QEMU_GA_DISTRO)\Tools\QemuGA">
               <RegistryValue Type="string" Name="ProductID" Value="fb0a0d66-c7fb-4e2e-a16b-c4a3bfe8d13b" />