diff --git a/wxPython/src/gtk/_gdi_wrap.cpp b/wxPython/src/gtk/_gdi_wrap.cpp
index 72a8fe030a..68a9683ecd 100644
--- a/wxPython/src/gtk/_gdi_wrap.cpp
+++ b/wxPython/src/gtk/_gdi_wrap.cpp
@@ -1089,6 +1089,7 @@ static PyObject *_wrap_new_NamedColour(PyObject *self, PyObject *args, PyObject
         temp1 = True;
     }
     {
+        if (!wxPyCheckForApp()) SWIG_fail;
         PyThreadState* __tstate = wxPyBeginAllowThreads();
         result = (wxColour *)new wxColour((wxString const &)*arg1);
         
diff --git a/wxPython/src/mac/_gdi_wrap.cpp b/wxPython/src/mac/_gdi_wrap.cpp
index 9bd107d566..6f5bfe39a5 100644
--- a/wxPython/src/mac/_gdi_wrap.cpp
+++ b/wxPython/src/mac/_gdi_wrap.cpp
@@ -1094,6 +1094,7 @@ static PyObject *_wrap_new_NamedColour(PyObject *self, PyObject *args, PyObject
         temp1 = True;
     }
     {
+        if (!wxPyCheckForApp()) SWIG_fail;
         PyThreadState* __tstate = wxPyBeginAllowThreads();
         result = (wxColour *)new wxColour((wxString const &)*arg1);