diff --git a/PocoDoc/src/PocoDoc.cpp b/PocoDoc/src/PocoDoc.cpp
index a7aa7102c..561d3ef0c 100644
--- a/PocoDoc/src/PocoDoc.cpp
+++ b/PocoDoc/src/PocoDoc.cpp
@@ -272,11 +272,7 @@ protected:
 	void parse(const std::string& file)
 	{
 		logger().information("Preprocessing " + file);
-#ifndef POCO_ENABLE_CPP11
-		std::auto_ptr<Preprocessor> pPreProc(preprocess(file));
-#else
 		std::unique_ptr<Preprocessor> pPreProc(preprocess(file));
-#endif // POCO_ENABLE_CPP11
 		logger().information("Parsing " + file);
 		if (pPreProc->stream().good())
 		{