diff --git a/lib/content-services/src/lib/document-list/utils/node-tooltip.utils.spec.ts b/lib/content-services/src/lib/document-list/utils/node-tooltip.utils.spec.ts
index 2049382d7b..23cd98e26b 100644
--- a/lib/content-services/src/lib/document-list/utils/node-tooltip.utils.spec.ts
+++ b/lib/content-services/src/lib/document-list/utils/node-tooltip.utils.spec.ts
@@ -285,5 +285,26 @@ describe('NodeTooltipUtils', () => {
             const result = NodeTooltipUtils.getLibraryTitle(library, allEntries);
             expect(result).toBe('Library Title');
         });
+
+        it('should append id as suffix when name is present and equals title', () => {
+            const library = { id: 'lib1', name: 'Duplicate Title', title: 'Duplicate Title' };
+            const allEntries = [{ id: 'lib2', title: 'Duplicate Title' }];
+            const result = NodeTooltipUtils.getLibraryTitle(library, allEntries);
+            expect(result).toBe('Duplicate Title (lib1)');
+        });
+
+        it('should append id as suffix when name is missing', () => {
+            const library = { id: 'lib1', title: 'Duplicate Title' };
+            const allEntries = [{ id: 'lib2', title: 'Duplicate Title' }];
+            const result = NodeTooltipUtils.getLibraryTitle(library, allEntries);
+            expect(result).toBe('Duplicate Title (lib1)');
+        });
+
+        it('should fallback to id when both name and title are missing', () => {
+            const library = { id: 'lib1' };
+            const allEntries = [];
+            const result = NodeTooltipUtils.getLibraryTitle(library, allEntries);
+            expect(result).toBe('lib1');
+        });
     });
 });
diff --git a/lib/content-services/src/lib/document-list/utils/node-tooltip.utils.ts b/lib/content-services/src/lib/document-list/utils/node-tooltip.utils.ts
index ee13ff2d78..1b5c176eec 100644
--- a/lib/content-services/src/lib/document-list/utils/node-tooltip.utils.ts
+++ b/lib/content-services/src/lib/document-list/utils/node-tooltip.utils.ts
@@ -120,7 +120,10 @@ export class NodeTooltipUtils {
         }
 
         // If duplicate, append the ID or name in parentheses
-        const suffix = libraryName || libraryId;
+        let suffix = libraryId;
+        if (libraryName && libraryName !== libraryTitle) {
+            suffix = libraryName;
+        }
         return isDuplicate && suffix ? `${libraryTitle} (${suffix})` : libraryTitle;
     }