diff --git a/src/simulator/simulator/sim.py b/src/simulator/simulator/sim.py
index 612b2d9..b863534 100644
--- a/src/simulator/simulator/sim.py
+++ b/src/simulator/simulator/sim.py
@@ -265,7 +265,7 @@ class Sim(Node):
 
         msg = Float64()
         msg.data = clearZoneCenter * 1.00
-        slef.clear.publish(msg)
+        self.clear.publish(msg)
 
 
 def main(args=None):