diff --git a/aptly/interfaces.go b/aptly/interfaces.go
index 29a30566..f272f707 100644
--- a/aptly/interfaces.go
+++ b/aptly/interfaces.go
@@ -130,7 +130,7 @@ type Downloader interface {
 	DownloadWithChecksum(ctx context.Context, url string, destination string, expected *utils.ChecksumInfo, ignoreMismatch bool, maxTries int) error
 	// GetProgress returns Progress object
 	GetProgress() Progress
-	// GetLength of given url
+	// GetLength returns size by heading object with url
 	GetLength(ctx context.Context, url string) (int64, error)
 }
 
diff --git a/deb/remote.go b/deb/remote.go
index 2a862858..ebb1ce5e 100644
--- a/deb/remote.go
+++ b/deb/remote.go
@@ -460,7 +460,7 @@ func (repo *RemoteRepo) DownloadPackageIndexes(progress aptly.Progress, d aptly.
 		isInstaller := kind == PackageTypeInstaller
 		if err != nil {
 			if _, ok := err.(*http.NoCandidateFoundError); isInstaller && ok {
-				// checking of gpg file is only needed when checksums matches are required.
+				// checking if gpg file is only needed when checksums matches are required.
 				// otherwise there actually has been no candidate found and we can continue
 				if ignoreMismatch {
 					continue