diff --git a/src/common/dcbufcmn.cpp b/src/common/dcbufcmn.cpp
index ef8b9a34e6..4d4083603e 100644
--- a/src/common/dcbufcmn.cpp
+++ b/src/common/dcbufcmn.cpp
@@ -91,9 +91,6 @@ bool wxSharedDCBufferManager::ms_usingSharedBuffer = false;
 
 IMPLEMENT_DYNAMIC_CLASS(wxSharedDCBufferManager, wxModule)
 
-IMPLEMENT_DYNAMIC_CLASS(wxBufferedDC, wxMemoryDC)
-IMPLEMENT_ABSTRACT_CLASS(wxBufferedPaintDC, wxBufferedDC)
-
 // ============================================================================
 // wxBufferedDC
 // ============================================================================