diff --git a/src/main/resources/sourceMap.json b/src/main/resources/sourceMap.json
index 2d35f4c6c..ce8b11291 100644
--- a/src/main/resources/sourceMap.json
+++ b/src/main/resources/sourceMap.json
@@ -19,6 +19,7 @@
       "BAM": "Boo's Astral Menagerie",
       "BGDIA": "Baldur's Gate: Descent Into Avernus",
       "BGG": "Bigby Presents: Glory of the Giants",
+      "BMT": "The Book of Many Things",
       "CM": "Candlekeep Mysteries",
       "CoA": "Chains of Asmodeus",
       "CoS": "Curse of Strahd",