diff --git a/src/Bot/Config.hs b/src/Bot/Config.hs
index f308639..238bd6d 100644
--- a/src/Bot/Config.hs
+++ b/src/Bot/Config.hs
@@ -28,7 +28,7 @@ loadConfig = do
   repository <- requireEnv "GITHUB_REPOSITORY"
   eventName  <- requireEnv "GITHUB_EVENT_NAME"
   eventPath  <- requireEnv "GITHUB_EVENT_PATH"
-  runId      <- lookupEnvText "GITHUB_RUN_ID" ""
+  runId      <- lookupEnvText "GITHUB_RUN_NUMBER" ""
   trigger    <- lookupEnvText "INPUT_TRIGGER_PHRASE" "@claude"
 
   let repoText = T.pack repository