diff --git a/qt5/src/poppler-private.h b/qt5/src/poppler-private.h
index 0dd40d7..59d3b95 100644
--- a/qt5/src/poppler-private.h
+++ b/qt5/src/poppler-private.h
@@ -85,7 +85,7 @@ namespace Poppler {
 		init();
 		m_filePath = filePath;	
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(__MINGW32__)
 		wchar_t *fileName = new WCHAR[filePath.length()];
 		std::wstring wstr = (const wchar_t *)filePath.utf16();
 		int length = wstr._Copy_s(fileName, filePath.length(), filePath.length());