diff --git a/api/task_queue/BUILD.gn b/api/task_queue/BUILD.gn
index 5c1a1dc26e..7d449778bb 100644
--- a/api/task_queue/BUILD.gn
+++ b/api/task_queue/BUILD.gn
@@ -22,6 +22,7 @@ rtc_library("task_queue") {
   deps = [
     "../../rtc_base:checks",
     "../../rtc_base:macromagic",
+    "../../rtc_base/system:rtc_export",
     "//third_party/abseil-cpp/absl/base:config",
     "//third_party/abseil-cpp/absl/base:core_headers",
     "//third_party/abseil-cpp/absl/strings",
diff --git a/api/task_queue/task_queue_base.h b/api/task_queue/task_queue_base.h
index 7e42bbaead..90b1efd31e 100644
--- a/api/task_queue/task_queue_base.h
+++ b/api/task_queue/task_queue_base.h
@@ -13,6 +13,7 @@
 #include <memory>
 
 #include "api/task_queue/queued_task.h"
+#include "rtc_base/system/rtc_export.h"
 #include "rtc_base/thread_annotations.h"
 
 namespace webrtc {
@@ -21,7 +22,7 @@ namespace webrtc {
 // in FIFO order and that tasks never overlap. Tasks may always execute on the
 // same worker thread and they may not. To DCHECK that tasks are executing on a
 // known task queue, use IsCurrent().
-class RTC_LOCKABLE TaskQueueBase {
+class RTC_LOCKABLE RTC_EXPORT TaskQueueBase {
  public:
   // Starts destruction of the task queue.
   // On return ensures no task are running and no new tasks are able to start
diff --git a/api/video/video_frame.h b/api/video/video_frame.h
index 284667f991..7c512ca5be 100644
--- a/api/video/video_frame.h
+++ b/api/video/video_frame.h
@@ -29,7 +29,7 @@ namespace webrtc {
 
 class RTC_EXPORT VideoFrame {
  public:
-  struct UpdateRect {
+  struct RTC_EXPORT UpdateRect {
     int offset_x;
     int offset_y;
     int width;
diff --git a/modules/audio_processing/include/audio_processing.h b/modules/audio_processing/include/audio_processing.h
index 80474f8346..f1242a7636 100644
--- a/modules/audio_processing/include/audio_processing.h
+++ b/modules/audio_processing/include/audio_processing.h
@@ -246,9 +246,9 @@ class RTC_EXPORT AudioProcessing : public rtc::RefCountInterface {
   // top-level processing effects. Use during processing may cause undesired
   // submodule resets, affecting the audio quality. Use the RuntimeSetting
   // construct for runtime configuration.
-  struct Config {
+  struct RTC_EXPORT Config {
     // Sets the properties of the audio processing pipeline.
-    struct Pipeline {
+    struct RTC_EXPORT Pipeline {
       Pipeline();
 
       // Maximum allowed processing rate used internally. May only be set to
diff --git a/rtc_base/BUILD.gn b/rtc_base/BUILD.gn
index 0115429ae4..d189fb0923 100644
--- a/rtc_base/BUILD.gn
+++ b/rtc_base/BUILD.gn
@@ -228,6 +228,7 @@ rtc_library("rtc_event") {
     ]
     deps = [
       ":checks",
+      "system:rtc_export",  # Only Chromium's rtc::Event use RTC_EXPORT.
       "//base",  # Dependency on chromium's waitable_event.
     ]
   } else {