diff --git a/module/utils/rank.mjs b/module/utils/rank.mjs
index 806703a..81f6b59 100644
--- a/module/utils/rank.mjs
+++ b/module/utils/rank.mjs
@@ -1,5 +1,12 @@
 import { gameTerms } from "../gameTerms.mjs";
 
+/**
+ * Converts a rank's name into an integer form for use in mathematical calculations
+ * that rely on rank.
+ *
+ * @param {Novice|Adept|Expert|Master} rankName The rank to convert into an integer
+ * @returns An integer between 1 and 4
+ */
 export function rankToInteger(rankName) {
 	return Object.values(gameTerms.Rank)
 		.findIndex(r => r === rankName) + 1;