diff --git a/store/file/ods.go b/store/file/ods.go
index 70b3a9aa15..3f9468ddf0 100644
--- a/store/file/ods.go
+++ b/store/file/ods.go
@@ -130,6 +130,7 @@ func writeAxisRoots(w io.Writer, roots *share.AxisRoots) error {
 	return nil
 }
 
+// CheckODSSize checks if the file under given FS path has the expected size.
 func CheckODSSize(path string, eds *rsmt2d.ExtendedDataSquare) error {
 	_, err := checkODSSize(path, eds)
 	return err
diff --git a/store/file/ods_q4.go b/store/file/ods_q4.go
index 1612cdecc4..353098f0d8 100644
--- a/store/file/ods_q4.go
+++ b/store/file/ods_q4.go
@@ -63,6 +63,7 @@ func CreateODSQ4(
 	return nil
 }
 
+// CheckODSQ4Size checks the size of the ODS and Q4 files under the given FS paths.
 func CheckODSQ4Size(pathODS, pathQ4 string, eds *rsmt2d.ExtendedDataSquare) error {
 	h, err := checkODSSize(pathODS, eds)
 	if err != nil {