diff --git a/apps/red-ui/src/app/modules/shared/components/editor/editor.component.ts b/apps/red-ui/src/app/modules/shared/components/editor/editor.component.ts
index 1bac843a6..4b5fa1fb1 100644
--- a/apps/red-ui/src/app/modules/shared/components/editor/editor.component.ts
+++ b/apps/red-ui/src/app/modules/shared/components/editor/editor.component.ts
@@ -17,6 +17,7 @@ const lineChangeToDecoration = ({ originalEndLineNumber, originalStartLineNumber
         },
     } as IModelDeltaDecoration);
 const isPositive = (lineChange: ILineChange) => lineChange.originalEndLineNumber - lineChange.originalStartLineNumber >= 0;
+const notZero = (lineChange: ILineChange) => lineChange.originalEndLineNumber !== 0 && lineChange.originalStartLineNumber !== 0;
 
 @Component({
     selector: 'redaction-editor',
@@ -122,11 +123,12 @@ export class EditorComponent implements OnInit {
         let glyphDecorations = [];
         this.diffEditor.onDidUpdateDiff(() => {
             /**
-             * Sometimes diff editor thinks that there's a change that ends on line 0 and starts on line 2000 or so.
+             * Sometimes diff editor thinks that there's a change that starts on a line greater than 0 and ends on line 0.
              * We must get all change that started on a line and ended on the same or greater line
              * Otherwise margin buttons will have an odd behaviour
              */
-            const decorations = this.diffEditor.getLineChanges().filter(isPositive).map(lineChangeToDecoration);
+            const lineChanges = this.diffEditor.getLineChanges().filter(change => isPositive(change) && notZero(change));
+            const decorations = lineChanges.map(lineChangeToDecoration);
             glyphDecorations = this.diffEditor.getOriginalEditor().deltaDecorations(glyphDecorations, decorations);
         });
     }