diff --git a/commands/files/serialfile.go b/commands/files/serialfile.go
index 520aa81e0a0..22de5c1b484 100644
--- a/commands/files/serialfile.go
+++ b/commands/files/serialfile.go
@@ -131,11 +131,16 @@ func (f *serialFile) Size() (int64, error) {
 	}
 
 	var du int64
-	err := filepath.Walk(f.FileName(), func(p string, fi os.FileInfo, err error) error {
+	err := filepath.Walk(f.FullPath(), func(p string, fi os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
 		if fi != nil && fi.Mode()&(os.ModeSymlink|os.ModeNamedPipe) == 0 {
 			du += fi.Size()
 		}
 		return nil
 	})
+
 	return du, err
 }
diff --git a/core/commands/add.go b/core/commands/add.go
index 2198dedcaad..5daf7170510 100644
--- a/core/commands/add.go
+++ b/core/commands/add.go
@@ -242,22 +242,13 @@ You can now refer to the added file in a gateway, like so:
 		}
 
 		var bar *pb.ProgressBar
-		var terminalWidth int
 		if progress {
 			bar = pb.New64(0).SetUnits(pb.U_BYTES)
 			bar.ManualUpdate = true
+			bar.ShowTimeLeft = false
+			bar.ShowPercent = false
+			bar.Output = res.Stderr()
 			bar.Start()
-
-			// the progress bar lib doesn't give us a way to get the width of the output,
-			// so as a hack we just use a callback to measure the output, then git rid of it
-			terminalWidth = 0
-			bar.Callback = func(line string) {
-				terminalWidth = len(line)
-				bar.Callback = nil
-				bar.Output = res.Stderr()
-				log.Infof("terminal width: %v\n", terminalWidth)
-			}
-			bar.Update()
 		}
 
 		var sizeChan chan int64
@@ -317,6 +308,9 @@ You can now refer to the added file in a gateway, like so:
 					bar.ShowBar = true
 					bar.ShowTimeLeft = true
 				}
+			case <-req.Context().Done():
+				res.SetError(req.Context().Err(), cmds.ErrNormal)
+				return
 			}
 		}
 	},