diff --git a/Assets/Scripts/UI/InGame/WebViewController.cs b/Assets/Scripts/UI/InGame/WebViewController.cs
index 9211244bff89053fb2640707140f1ce9215d2bc1..c1cb33f3a370b56697153bf31e8e6efc9374f15a 100644
--- a/Assets/Scripts/UI/InGame/WebViewController.cs
+++ b/Assets/Scripts/UI/InGame/WebViewController.cs
@@ -95,15 +95,20 @@ private async void SetScrollContent(Scroll scroll)
                 var slotId = match.Groups[2].Value;
                 var assignment = SwitchScrollUI.activeScrollData.Assignments[slotId];
                 /** label of the assigned fact, or the slot label if nothing assigned */
-                var label = assignment.IsSet ? assignment.fact.GetLabel(StageStatic.stage.factState) : scroll.requiredFacts.Find(fact => fact.@ref.uri == slotId).label;
-                return $"<mi dropzone='copy' data-slot-id='{slotId}' {(assignment.IsSet ? $"data-fact-id='{assignment.fact.Id}'" : "")} {extraAttributes}>{label}</mi>";
+                var label = assignment.IsSet    ? assignment.fact.GetLabel(StageStatic.stage.factState) 
+                                                : scroll.requiredFacts.Find(fact => fact.@ref.uri == slotId).label;
+                /** id of the assigned fact. If nothing is assigned don't add the attribute */
+                var fact_id = assignment.IsSet  ? $"data-fact-id='{assignment.fact.Id}'" 
+                                                : "";
+                return $"<mi dropzone='copy' data-slot-id='{slotId}' {fact_id} {extraAttributes}>{label}</mi>";
             });
             // replace solution templates
             description = Regex.Replace(description, "<scroll-solution([^>]*)>([^<]*)</scroll-solution>", match =>
             {
                 var extraAttributes = match.Groups[1].Value;
                 var solutionId = match.Groups[2].Value;
-                return $"<mi data-solution-id='{solutionId}' {extraAttributes}>{scroll.acquiredFacts.Find(fact => fact.@ref.uri == solutionId).label}</mi>";
+                var label = scroll.acquiredFacts.Find(fact => fact.@ref.uri == solutionId).label;
+                return $"<mi data-solution-id='{solutionId}' {extraAttributes}>{label}</mi>";
             });
         }
         else