diff --git a/qcom/rmtfs/rmtfs.c b/qcom/rmtfs/rmtfs.c
index 795c021..26c0488 100644
--- a/qcom/rmtfs/rmtfs.c
+++ b/qcom/rmtfs/rmtfs.c
@@ -499,7 +499,11 @@
 
 	while ((option = getopt(argc, argv, "o:Prsv")) != -1) {
 		switch (option) {
-		/* -o sets the directory where EFS images are stored. */
+		/*
+		 * -o sets the directory where EFS images are stored,
+		 * or sets the directory from where raw EFS partitions
+		 * can be picked by-name when used with -P option.
+		 */
 		case 'o':
 			storage_root = optarg;
 			break;