diff --git a/plugins/common/io.go b/plugins/common/io.go
index f57b20e42..79e98452b 100644
--- a/plugins/common/io.go
+++ b/plugins/common/io.go
@@ -170,6 +170,7 @@ func SetPermissions(path string, fileMode os.FileMode) error {
 	return os.Chown(path, uid, gid)
 }
 
+// WriteSliceToFile writes a slice of strings to a file
 func WriteSliceToFile(filename string, lines []string) error {
 	file, err := os.OpenFile(filename, os.O_RDWR|os.O_TRUNC, 0600)
 	if err != nil {