diff --git a/packages/sogo-addons.xml b/packages/sogo-addons.xml
index 2c6b9e9..668c3ca 100644
--- a/packages/sogo-addons.xml
+++ b/packages/sogo-addons.xml
@@ -23,7 +23,7 @@
 
         <check type="execute" path='%COMSPEC% /C type "%INSTALL_PATH%\sogo-connector\install.rdf" | find /I "em:version=" | find "%PKG_VERSION%"' condition="exitcodeequalto" value="0" />
         <check type="execute" path='%COMSPEC% /C type "%INSTALL_PATH%\sogo-integrator\install.rdf" | find /I "em:version=" | find "%PKG_VERSION%"' condition="exitcodeequalto" value="0" />
-        <check type="execute" path='%COMSPEC% /C type "%INSTALL_PATH%\startupmaster\install.rdf" | find /I "em:version=" | find "%STARTUPMASTER_VERSION%"' condition="exitcodeequalto" value="0" />
+        <check type="execute" path='%COMSPEC% /C type "%INSTALL_PATH%\startupmaster\install.rdf" | find /I "&lt;em:version&gt;%STARTUPMASTER_VERSION%"' condition="exitcodeequalto" value="0" />
 
         <install include="remove" />
         <install cmd='%COMSPEC% /C if not exist "%INSTALL_PATH%\sogo-connector" mkdir "%INSTALL_PATH%\sogo-connector"' />