diff --git a/module/apps/textroll/text-roll-carac-competence.js b/module/apps/textroll/text-roll-carac-competence.js
index c7511696..6441a2a8 100644
--- a/module/apps/textroll/text-roll-carac-competence.js
+++ b/module/apps/textroll/text-roll-carac-competence.js
@@ -7,7 +7,8 @@ import { TextRollManager } from "./text-roll-formatter.js";
 
 const REGECP_CARAC = "(?<carac>[A-Za-zÀ-ÖØ-öø-ÿ\\s\\-]+)"
 const REGEXP_COMP = "(\\/(?<competence>[A-Za-zÀ-ÖØ-öø-ÿ\\s\\-]+))?"
-const REGEXP_DIFF = "(/(?<diff>[\\+\\-]?\\d+))?"
+const REGEXP_DIFF = "(/(?<diff>[\\+\\-]?\\d+(d\\d+)?))?"
+const REGEX_DICE_DIFF = /[\+\-]?\d+d\d+/;
 const REGEXP_ROLL_CARAC_COMP = REGECP_CARAC + REGEXP_COMP + REGEXP_DIFF
 const XREGEXP_ROLL_CARAC_COMP = XRegExp("@roll\\[" + REGEXP_ROLL_CARAC_COMP + "\\]", 'giu')
 
@@ -29,12 +30,23 @@ export class TextRollCaracCompetence {
     const caracCode = node.data('carac-code')
     if (caracCode) {
       const competence = node.data('competence')
-      const diff = node.data('diff')
+      const diff = await this.calculDiff(node)
       const actors = this.getSelectedActors(actor)
       actors.forEach(async it => await this.doRoll(it, caracCode, competence, diff))
     }
   }
 
+  async calculDiff(node) {
+    const diff = node.data('diff') ?? 0
+    if (diff.match(REGEX_DICE_DIFF)) {
+      const roll = new Roll(diff)
+      await roll.evaluate()
+      await roll.toMessage({flavor: `La difficulté de ${diff} a donné ${roll.total}`})
+      return roll.total
+    }
+    return diff
+  }
+
   async doRoll(actor, caracCode, competence, diff) {
     caracCode = actor.mapCarac(caracCode)
     if (competence) {