diff --git a/src/sugar/graphics/icon.py b/src/sugar/graphics/icon.py
index d047d56d..6e88f88b 100644
--- a/src/sugar/graphics/icon.py
+++ b/src/sugar/graphics/icon.py
@@ -733,7 +733,7 @@ class CanvasIcon(hippo.CanvasBox, hippo.CanvasItem):
         return self._buffer.width
 
     size = gobject.property(
-        type=int, getter=get_size, setter=set_size)
+        type=object, getter=get_size, setter=set_size)
 
     def set_scale(self, value):
         """