diff --git a/vultr.py b/vultr.py
index 5a14eb4..14e4936 100644
--- a/vultr.py
+++ b/vultr.py
@@ -32,7 +32,7 @@
 CHECK_INTERVAL_MAX = 10 # maximum check interval (minutes)
 CHECK_INTERVAL_MIN = 4 # # minimum check interval (minutes)
 check_int = CHECK_INTERVAL_MAX
-CHECK_PORT = '1010' # slave's port which master will use tcpping to check, make sure this port is open on slave server!
+CHECK_PORT = '1010' # subordinate's port which main will use tcpping to check, make sure this port is open on subordinate server!
 RANDOM_REGION = True # True: randomly select new region from REGION_LIST when detected a blocked server; False: keep the same region as the old server
 REGION_LIST = ['Atlanta', 'Dallas', 'Chicago', 'Los Angeles', 'Silicon Valley', 'Seattle', 'Miami'] # regions that can be randomly selected for new server
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