diff --git a/tuhi/drawing.py b/tuhi/drawing.py
index 01ad32a..04adb49 100644
--- a/tuhi/drawing.py
+++ b/tuhi/drawing.py
@@ -43,7 +43,7 @@ class Stroke(GObject.Object):
         self._pressure = 0
         self._is_sealed = False
 
-    @GObject.property
+    @GObject.Property
     def sealed(self):
         return self._is_sealed