diff --git a/pytorch_lightning/tuner/tuning.py b/pytorch_lightning/tuner/tuning.py
index b9fa9afe0e77e..6ebc25915ef83 100644
--- a/pytorch_lightning/tuner/tuning.py
+++ b/pytorch_lightning/tuner/tuning.py
@@ -61,7 +61,11 @@ def tune(self, model, train_dataloader, val_dataloaders, datamodule):
 
         # Run learning rate finder:
         if self.trainer.auto_lr_find:
-            self.lr_find(model, update_attr=True)
+            self.lr_find(model,
+                         train_dataloader=train_dataloader,
+                         val_dataloaders=val_dataloaders,
+                         datamodule=datamodule,
+                         update_attr=True)
 
         self.trainer.state = TrainerState.FINISHED