diff --git a/Source/cmGlobalVisualStudio10Generator.cxx b/Source/cmGlobalVisualStudio10Generator.cxx
index 5ea323a0e7..82fcaaddea 100644
--- a/Source/cmGlobalVisualStudio10Generator.cxx
+++ b/Source/cmGlobalVisualStudio10Generator.cxx
@@ -938,6 +938,7 @@ void cmGlobalVisualStudio10Generator::GenerateBuildCommand(
     configArg += "Debug";
   }
   makeCommand.push_back(configArg);
+  makeCommand.push_back("/p:Platform=" + this->GetPlatformName());
   makeCommand.push_back(std::string("/p:VisualStudioVersion=") +
                         this->GetIDEVersion());