diff --git a/lib/content-services/src/lib/viewer/components/alfresco-viewer.component.spec.ts b/lib/content-services/src/lib/viewer/components/alfresco-viewer.component.spec.ts
index ebde019ac3f..b1eb9d6276d 100644
--- a/lib/content-services/src/lib/viewer/components/alfresco-viewer.component.spec.ts
+++ b/lib/content-services/src/lib/viewer/components/alfresco-viewer.component.spec.ts
@@ -478,7 +478,7 @@ describe('AlfrescoViewerComponent', () => {
     });
 
     describe('mimeType', () => {
-        it('should set mime type based on nodeData content', async () => {
+        it('should set mime type based on renditionMimeType rather then nodeData', async () => {
             const defaultNode: Node = {
                 id: 'mock-id',
                 name: 'Mock Node',
@@ -496,7 +496,7 @@ describe('AlfrescoViewerComponent', () => {
             spyOn(renditionService, 'getNodeRendition').and.returnValue(
                 Promise.resolve({
                     url: '',
-                    mimeType: ''
+                    mimeType: 'application/pdf'
                 })
             );
 
@@ -510,7 +510,7 @@ describe('AlfrescoViewerComponent', () => {
             } as Node);
 
             await fixture.whenStable();
-            expect(component.mimeType).toEqual('application/msWord');
+            expect(component.mimeType).toEqual('application/pdf');
         });
     });
 
diff --git a/lib/content-services/src/lib/viewer/components/alfresco-viewer.component.ts b/lib/content-services/src/lib/viewer/components/alfresco-viewer.component.ts
index c9f09f22b20..4a9aa507fb2 100644
--- a/lib/content-services/src/lib/viewer/components/alfresco-viewer.component.ts
+++ b/lib/content-services/src/lib/viewer/components/alfresco-viewer.component.ts
@@ -346,7 +346,7 @@ export class AlfrescoViewerComponent implements OnChanges, OnInit, OnDestroy {
 
                 const nodeMimeType = nodeData?.content?.mimeType;
                 const renditionMimeType = nodeRendition.mimeType;
-                mimeType = nodeMimeType || renditionMimeType;
+                mimeType = renditionMimeType || nodeMimeType;
             }
         } else if (viewerType === 'media') {
             this.tracks = await this.renditionService.generateMediaTracksRendition(this.nodeId);