diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index a61cab11d..7d98734f9 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -2911,7 +2911,6 @@ void cmGlobalGenerator::WriteSummary()
   cmGeneratedFileStream fout(fname.c_str());
 
   // Generate summary information files for each target.
-  std::string dir;
   for(std::map<cmStdString,cmTarget *>::const_iterator ti =
         this->TotalTargets.begin(); ti != this->TotalTargets.end(); ++ti)
     {