diff --git a/Code/Mantid/Framework/Kernel/src/ConfigService.cpp b/Code/Mantid/Framework/Kernel/src/ConfigService.cpp
index d197d1a776d9ab896281cdebdd0df7f75925118e..8567955991d4b6cfd21a312c94823f8472e3a0df 100644
--- a/Code/Mantid/Framework/Kernel/src/ConfigService.cpp
+++ b/Code/Mantid/Framework/Kernel/src/ConfigService.cpp
@@ -323,6 +323,10 @@ void ConfigServiceImpl::configureLogging()
 
     Poco::Path logpath(m_logFilePath);
 
+    // Undocumented way to override the mantid.log path
+    if (Poco::Environment::has("MANTIDLOGPATH"))
+      logpath = Poco::Path(Poco::Environment::get("MANTIDLOGPATH"));
+
     // An absolute path makes things simpler
     logpath = logpath.absolute();