diff --git a/core/constants.py b/core/constants.py
index 3efb76a..b26e99f 100644
--- a/core/constants.py
+++ b/core/constants.py
@@ -9,7 +9,7 @@ SOFTWARE_VERSION = "0.1"
 HTTP_HEADERS = {"User-Agent": SOFTWARE_NAME + " " + SOFTWARE_VERSION + " (operated by " + SERVER_OWNER_CALLSIGN + ")"}
 
 # Special Interest Groups
-SIGS = ["POTA", "SOTA", "WWFF", "GMA", "WWBOTA", "HEMA", "MOTA", "ARLHS", "ILLW", "SiOTA", "WCA", "MOTA", "ZLOTA", "IOTA"]
+SIGS = ["POTA", "SOTA", "WWFF", "GMA", "WWBOTA", "HEMA", "MOTA", "ARLHS", "ILLW", "SiOTA", "WCA", "ZLOTA", "IOTA"]
 
 # Modes. Note "DIGI" and "DIGITAL" are also supported but are normalised into "DATA".
 CW_MODES = ["CW"]