diff --git a/meshroom/ui/reconstruction.py b/meshroom/ui/reconstruction.py
index 3cf87cf913..b6fadba78d 100755
--- a/meshroom/ui/reconstruction.py
+++ b/meshroom/ui/reconstruction.py
@@ -518,6 +518,7 @@ def __del__(self):
     def setActive(self, active):
         self._active = active
 
+    @Slot()
     def clear(self):
         self.clearActiveNodes()
         super().clear()