diff --git a/projects/aca-shared/rules/src/app.rules.spec.ts b/projects/aca-shared/rules/src/app.rules.spec.ts
index 1f37fd342..3306e147e 100644
--- a/projects/aca-shared/rules/src/app.rules.spec.ts
+++ b/projects/aca-shared/rules/src/app.rules.spec.ts
@@ -362,4 +362,81 @@ describe('app.evaluators', () => {
       expect(app.canUploadVersion(context)).toBe(true);
     });
   });
+
+  describe('isShared', () => {
+    it('should return true if route is shared files and single selection', () => {
+      const context: any = {
+        selection: {
+          file: {}
+        },
+        navigation: {
+          url: '/shared'
+        }
+      };
+
+      expect(app.isShared(context)).toBe(true);
+    });
+
+    it('should return false if route is shared files and multiple selection', () => {
+      const context: any = {
+        selection: {
+          file: null
+        },
+        navigation: {
+          url: '/shared'
+        }
+      };
+
+      expect(app.isShared(context)).toBe(false);
+    });
+
+    it('should return false if route is trashcan route', () => {
+      const context: any = {
+        selection: {
+          file: {}
+        },
+        navigation: {
+          url: '/trashcan'
+        }
+      };
+
+      expect(app.isShared(context)).toBe(false);
+    });
+
+    it('should return false if selection is not shared', () => {
+      const context: any = {
+        selection: {
+          file: {
+            entry: {
+              properties: {}
+            }
+          }
+        },
+        navigation: {
+          url: '/other'
+        }
+      };
+
+      expect(app.isShared(context)).toBe(false);
+    });
+
+    it('should return true if selection is shared', () => {
+      const context: any = {
+        selection: {
+          file: {
+            entry: {
+              properties: {
+                'qshare:sharedId': 'some-id'
+              }
+            }
+          }
+        },
+        navigation: {
+          url: '/other'
+        }
+      };
+
+      expect(app.isShared(context)).toBe(true);
+    });
+  });
 });
diff --git a/projects/aca-shared/rules/src/app.rules.ts b/projects/aca-shared/rules/src/app.rules.ts
index 129c4d585..426d49eab 100644
--- a/projects/aca-shared/rules/src/app.rules.ts
+++ b/projects/aca-shared/rules/src/app.rules.ts
@@ -114,7 +114,7 @@ export function canEditFolder(context: RuleContext): boolean {
  * JSON ref: `app.selection.file.isShared`
  */
 export function isShared(context: RuleContext): boolean {
-  if (navigation.isSharedFiles(context) && !context.selection.isEmpty) {
+  if (navigation.isSharedFiles(context) && context.selection.file) {
     return true;
   }