diff --git a/libraries/liblmdb/CHANGES b/libraries/liblmdb/CHANGES
index 710b4772c1..6e8910d280 100644
--- a/libraries/liblmdb/CHANGES
+++ b/libraries/liblmdb/CHANGES
@@ -25,6 +25,7 @@ LMDB 0.9.15 Release Engineering
 		Fix mdb_cursor_put,mdb_cursor_del EACCES description
 		Fix mdb_env_sync(MDB_RDONLY env) doc (ITS#8021)
 		Clarify MDB_WRITEMAP doc (ITS#8021)
+		Clarify mdb_env_open doc
 		Clarify mdb_dbi_open doc
 
 LMDB 0.9.14 Release (2014/09/20)
diff --git a/libraries/liblmdb/lmdb.h b/libraries/liblmdb/lmdb.h
index e8aed94418..d0ce563d2b 100644
--- a/libraries/liblmdb/lmdb.h
+++ b/libraries/liblmdb/lmdb.h
@@ -588,8 +588,8 @@ int  mdb_env_create(MDB_env **env);
 	 *		reserved in that case.
 	 *		This flag may be changed at any time using #mdb_env_set_flags().
 	 * </ul>
-	 * @param[in] mode The UNIX permissions to set on created files. This parameter
-	 * is ignored on Windows.
+	 * @param[in] mode The UNIX permissions to set on created files and semaphores.
+	 * This parameter is ignored on Windows.
 	 * @return A non-zero error value on failure and 0 on success. Some possible
 	 * errors are:
 	 * <ul>