diff --git a/src/smblib/smblib.c b/src/smblib/smblib.c
index e83a5101ef9ac84cab118ecc4f2433a522948d99..6da5095d32c42b3dbb47ac0a812a5b819bcdbb18 100644
--- a/src/smblib/smblib.c
+++ b/src/smblib/smblib.c
@@ -1780,7 +1780,7 @@ ulong SMBCALL smb_hdrblocks(ulong length)
 }
 
 /****************************************************************************/
-/* Returns difference from specified timezone and UTC/GMT					*/
+/* Returns difference from specified timezone and UTC/GMT (in minutes)		*/
 /****************************************************************************/
 int SMBCALL smb_tzutc(short zone)
 {