diff --git a/src/common/docview.cpp b/src/common/docview.cpp
index 99e7eb82eb..4e7c5624d1 100644
--- a/src/common/docview.cpp
+++ b/src/common/docview.cpp
@@ -916,8 +916,6 @@ wxDocManager* wxDocManager::sm_docManager = NULL;
 
 wxDocManager::wxDocManager(long WXUNUSED(flags), bool initialize)
 {
-    wxASSERT_MSG( !sm_docManager, "multiple wxDocManagers not allowed" );
-
     sm_docManager = this;
 
     m_defaultDocumentNameCounter = 1;