diff --git a/python/ray/rllib/agents/agent.py b/python/ray/rllib/agents/agent.py
index 877c73230..ac7ef6dc8 100644
--- a/python/ray/rllib/agents/agent.py
+++ b/python/ray/rllib/agents/agent.py
@@ -87,7 +87,7 @@ COMMON_CONFIG = {
     "compress_observations": False,
     # Allocate a fraction of a GPU instead of one (e.g., 0.3 GPUs)
     "gpu_fraction": 1,
-    # Drop metric batches from unresponsive workers after this timeout (seconds)
+    # Drop metric batches from unresponsive workers after this many seconds
     "collect_metrics_timeout": 180,
 
     # === Multiagent ===