diff --git a/module/rdd-calendrier.js b/module/rdd-calendrier.js
index 705317b6..8a6c3bed 100644
--- a/module/rdd-calendrier.js
+++ b/module/rdd-calendrier.js
@@ -489,13 +489,17 @@ export class RdDCalendrier extends Application {
             }
             game.system.rdd.calendrier.calendrierPos.top  = yPos; 
             game.system.rdd.calendrier.calendrierPos.left = xPos; 
-            game.settings.set("foundryvtt-reve-de-dragon", "calendrier-pos",  duplicate(game.system.rdd.calendrier.calendrierPos) ); 
+            if ( game.user.isGM)  {
+              game.settings.set("foundryvtt-reve-de-dragon", "calendrier-pos",  duplicate(game.system.rdd.calendrier.calendrierPos) ); 
+            }
           }
         }
       } else if(isRightMB){
         game.system.rdd.calendrier.calendrierPos.top  = 200; 
         game.system.rdd.calendrier.calendrierPos.left = 200; 
-        game.settings.set("foundryvtt-reve-de-dragon", "calendrier-pos",  duplicate(game.system.rdd.calendrier.calendrierPos) ); 
+        if ( game.user.isGM)  {
+          game.settings.set("foundryvtt-reve-de-dragon", "calendrier-pos",  duplicate(game.system.rdd.calendrier.calendrierPos) ); 
+        }
         this.setPos(game.system.rdd.calendrier.calendrierPos);
       }
     });    
diff --git a/system.json b/system.json
index ae68410d..fd7f1074 100644
--- a/system.json
+++ b/system.json
@@ -2,7 +2,7 @@
   "name": "foundryvtt-reve-de-dragon",
   "title": "Rêve de Dragon",
   "description": "Rêve de Dragon RPG for FoundryVTT",
-  "version": "1.3.28",
+  "version": "1.3.29",
   "manifestPlusVersion": "1.0.0",
   "minimumCoreVersion": "0.7.5",
   "compatibleCoreVersion": "0.7.9",