diff --git a/src/sidebar/helpers/build-thread.ts b/src/sidebar/helpers/build-thread.ts
index ac80207d8db..9fcad56edb9 100644
--- a/src/sidebar/helpers/build-thread.ts
+++ b/src/sidebar/helpers/build-thread.ts
@@ -317,7 +317,13 @@ export function buildThread(
     });
   } else if (options.threadFilterFn) {
     // Remove threads not matching thread-level filters
-    thread.children = thread.children.filter(options.threadFilterFn);
+    const threadFilterFn = options.threadFilterFn;
+    thread.children = thread.children.filter(thread => {
+      if (hasForcedVisible && options.forcedVisible.includes(thread.id)) {
+        return true;
+      }
+      return threadFilterFn(thread);
+    });
   }
 
   // Set visibility for threads.
diff --git a/src/sidebar/helpers/test/build-thread-test.js b/src/sidebar/helpers/test/build-thread-test.js
index 87ed329eee3..3af76b91f67 100644
--- a/src/sidebar/helpers/test/build-thread-test.js
+++ b/src/sidebar/helpers/test/build-thread-test.js
@@ -475,11 +475,17 @@ describe('sidebar/helpers/build-thread', () => {
           text: 'note',
           target: [{ selector: undefined }],
         },
+        {
+          id: '3',
+          text: 'annotation',
+          target: [{ selector: undefined }],
+        },
       ];
 
-      it('shows only annotations matching the thread filter', () => {
+      it('shows only annotations matching the thread filter and forced-visible threads', () => {
         const thread = createThread(fixture, {
           threadFilterFn: thread => metadata.isPageNote(thread.annotation),
+          forcedVisible: ['3'],
         });
 
         assert.deepEqual(thread, [
@@ -487,6 +493,10 @@ describe('sidebar/helpers/build-thread', () => {
             annotation: fixture[1],
             children: [],
           },
+          {
+            annotation: fixture[2],
+            children: [],
+          },
         ]);
       });
     });