diff --git a/distributed/rpc/rl/main.py b/distributed/rpc/rl/main.py
index 91451ecc84..50a9bcdda5 100644
--- a/distributed/rpc/rl/main.py
+++ b/distributed/rpc/rl/main.py
@@ -164,7 +164,7 @@ def run_episode(self, n_steps=0):
                 )
             )
 
-        # wait until all obervers have finished this episode
+        # wait until all observers have finished this episode
         for fut in futs:
             fut.wait()