diff --git a/archive/tar_windows.go b/archive/tar_windows.go
index 1c52f3a..634442b 100644
--- a/archive/tar_windows.go
+++ b/archive/tar_windows.go
@@ -10,7 +10,7 @@ import (
 	"github.com/docker/docker/pkg/system"
 )
 
-// canonicalTarNameForPath returns platform-specific filepath
+// tarName returns platform-specific filepath
 // to canonical posix-style path for tar archival. p is relative
 // path.
 func tarName(p string) (string, error) {
diff --git a/cmd/ctr/pprof.go b/cmd/ctr/pprof.go
index b6bebca..c0d54f2 100644
--- a/cmd/ctr/pprof.go
+++ b/cmd/ctr/pprof.go
@@ -8,6 +8,8 @@ import (
 	"os"
 	"time"
 
+	"github.com/pkg/errors"
+
 	"github.com/urfave/cli"
 )
 
@@ -175,7 +177,7 @@ func httpGetRequest(client *http.Client, request string) (io.ReadCloser, error)
 		return nil, err
 	}
 	if resp.StatusCode != 200 {
-		return nil, fmt.Errorf("%s", resp.Status)
+		return nil, errors.Errorf("http get failed with status: %s", resp.Status)
 	}
 	return resp.Body, nil
 }