diff --git a/yesod-core/src/Yesod/Core/Internal/Run.hs b/yesod-core/src/Yesod/Core/Internal/Run.hs
index 8df1902e..ea055e45 100644
--- a/yesod-core/src/Yesod/Core/Internal/Run.hs
+++ b/yesod-core/src/Yesod/Core/Internal/Run.hs
@@ -209,7 +209,7 @@ safeEh :: (Loc -> LogSource -> LogLevel -> LogStr -> IO ())
        -> ErrorResponse
        -> YesodApp
 safeEh log' er req = do
-    traceStack "safeEh debug trace:" (log', er, req) $ liftIO
+    traceStack "safeEh debug trace:" $ liftIO
            $ log' $(qLocation >>= liftLoc) "yesod-core" LevelError
            $ toLogStr $ "Error handler errored out: " ++ show er
     return $ YRPlain