diff --git a/system.json b/system.json
index c2c28d9..2a356f1 100644
--- a/system.json
+++ b/system.json
@@ -1,7 +1,7 @@
 {
   "id": "fvtt-les-heritiers",
   "description": "Les Héritiers pour FoundryVTT",
-  "version": "10.0.4",
+  "version": "10.0.5",
   "authors": [
     {
       "name": "Uberwald/LeRatierBretonnien",
@@ -19,7 +19,7 @@
   "gridUnits": "m",
   "license": "LICENSE.txt",
   "manifest": "https://www.uberwald.me/gitea/public/fvtt-les-heritiers/raw/branch/master/system.json",
-  "download": "https://www.uberwald.me/gitea/public/fvtt-les-heritiers/archive/fvtt-les-heritiers-10.0.4.zip",
+  "download": "https://www.uberwald.me/gitea/public/fvtt-les-heritiers/archive/fvtt-les-heritiers-10.0.5.zip",
   "languages": [
     {
       "lang": "fr",
diff --git a/template.json b/template.json
index ba797a2..47e98f1 100644
--- a/template.json
+++ b/template.json
@@ -255,6 +255,8 @@
       "portee": "",
       "resistance": "",      
       "resistanceautre":"",
+      "isvirulence": false,
+      "virulence":"",
       "description": ""
     },
     "pouvoir": {
@@ -271,6 +273,8 @@
       "portee": "",
       "resistance": "",      
       "resistanceautre":"",
+      "isvirulence": false,
+      "virulence":"",
       "description": ""
     },
     "atoutfeerique": {
diff --git a/templates/item-capacitenaturelle-sheet.html b/templates/item-capacitenaturelle-sheet.html
index 7da1936..8ba66f9 100644
--- a/templates/item-capacitenaturelle-sheet.html
+++ b/templates/item-capacitenaturelle-sheet.html
@@ -68,6 +68,20 @@
           </li>
         {{/if}}
 
+        <li class="flexrow item">
+          <label class="generic-label item-field-label-long2">Virulence (ie Poison) ? </label>
+          <input type="checkbox" class="padd-right status-small-label color-class-common item-field-label-short"
+            name="system.isvirulence" {{checked system.isvirulence}}/>
+        </li>
+
+        {{#if system.isvirulence}}
+        <li class="flexrow item">
+          <label class="generic-label item-field-label-long2">Virulence </label>
+          <input type="text" class="padd-right status-small-label color-class-common item-field-label-long3"
+            name="system.virulence" value="{{system.virulence}}" data-dtype="String" />
+        </li>
+      {{/if}}
+
       </ul>
     </div>
 
diff --git a/templates/item-pouvoir-sheet.html b/templates/item-pouvoir-sheet.html
index 914c1d2..7d5674d 100644
--- a/templates/item-pouvoir-sheet.html
+++ b/templates/item-pouvoir-sheet.html
@@ -124,6 +124,20 @@
           </li>
         {{/if}}
 
+        <li class="flexrow item">
+          <label class="generic-label item-field-label-long2">Virulence (ie Poison) ? </label>
+          <input type="checkbox" class="padd-right status-small-label color-class-common item-field-label-short"
+            name="system.isvirulence" {{checked system.isvirulence}}/>
+        </li>
+
+        {{#if system.isvirulence}}
+        <li class="flexrow item">
+          <label class="generic-label item-field-label-long2">Virulence </label>
+          <input type="text" class="padd-right status-small-label color-class-common item-field-label-long3"
+            name="system.virulence" value="{{system.virulence}}" data-dtype="String" />
+        </li>
+      {{/if}}
+
       </ul>
     </div>