diff --git a/src/PythonQt.cpp b/src/PythonQt.cpp
index 117c492..e7e0509 100644
--- a/src/PythonQt.cpp
+++ b/src/PythonQt.cpp
@@ -1294,6 +1294,16 @@ void PythonQt::clearNotFoundCachedMembers()
   }
 }
 
+void PythonQt::removeWrapperFactory( PythonQtCppWrapperFactory* factory )
+{
+  _p->_cppWrapperFactories.removeAll(factory);
+}
+
+void PythonQt::removeWrapperFactory( PythonQtForeignWrapperFactory* factory )
+{
+  _p->_foreignWrapperFactories.removeAll(factory);
+}
+
 void PythonQtPrivate::removeWrapperPointer(void* obj)
 {
   _wrappedObjects.remove(obj);
diff --git a/src/PythonQt.h b/src/PythonQt.h
index 35d780d..63cbbb7 100644
--- a/src/PythonQt.h
+++ b/src/PythonQt.h
@@ -413,6 +413,12 @@ public:
   //! add the given factory to PythonQt (ownership stays with caller)
   void addWrapperFactory(PythonQtForeignWrapperFactory* factory);
 
+  //! remove the wrapper factory
+  void removeWrapperFactory(PythonQtCppWrapperFactory* factory);
+
+  //! remove the wrapper factory
+  void removeWrapperFactory(PythonQtForeignWrapperFactory* factory);
+
   //@}
 
   //---------------------------------------------------------------------------
diff --git a/src/PythonQtCppWrapperFactory.h b/src/PythonQtCppWrapperFactory.h
index c83b227..e4bf201 100644
--- a/src/PythonQtCppWrapperFactory.h
+++ b/src/PythonQtCppWrapperFactory.h
@@ -42,6 +42,12 @@
 */
 //----------------------------------------------------------------------------------
 
+#include "PythonQtPythonInclude.h"
+
+#include "PythonQtSystem.h"
+#include <QObject>
+#include <QByteArray>
+
 //! Factory interface for C++ classes that can be wrapped by QObject objects
 /*! To create your own factory, derive PythonQtCppWrapperFactory and implement
 the create() method.