diff --git a/wx/lib/floatcanvas/FCObjects.py b/wx/lib/floatcanvas/FCObjects.py
index d0a3affa..09f5fd92 100644
--- a/wx/lib/floatcanvas/FCObjects.py
+++ b/wx/lib/floatcanvas/FCObjects.py
@@ -46,7 +46,8 @@ def ComputeFontScale():
     FontScale = 16/E[1]
     del dc
 
-ComputeFontScale()    
+# why do we do this here, causes a Sphinx build crash
+#ComputeFontScale()    
 
 ## fixme: This should probably be re-factored into a class
 _testBitmap = None