diff --git a/api/adaptation/BUILD.gn b/api/adaptation/BUILD.gn
index 9716748e25..dc4c73711e 100644
--- a/api/adaptation/BUILD.gn
+++ b/api/adaptation/BUILD.gn
@@ -18,5 +18,6 @@ rtc_source_set("resource_adaptation_api") {
     "../../api:scoped_refptr",
     "../../rtc_base:refcount",
     "../../rtc_base:rtc_base_approved",
+    "../../rtc_base/system:rtc_export",
   ]
 }
diff --git a/api/adaptation/resource.h b/api/adaptation/resource.h
index 1a5bdd4ae4..9b3968055f 100644
--- a/api/adaptation/resource.h
+++ b/api/adaptation/resource.h
@@ -15,6 +15,7 @@
 
 #include "api/scoped_refptr.h"
 #include "rtc_base/ref_count.h"
+#include "rtc_base/system/rtc_export.h"
 
 namespace webrtc {
 
@@ -27,9 +28,10 @@ enum class ResourceUsageState {
   kUnderuse,
 };
 
-const char* ResourceUsageStateToString(ResourceUsageState usage_state);
+RTC_EXPORT const char* ResourceUsageStateToString(
+    ResourceUsageState usage_state);
 
-class ResourceListener {
+class RTC_EXPORT ResourceListener {
  public:
   virtual ~ResourceListener();
 
@@ -48,7 +50,7 @@ class ResourceListener {
 // The Resource is reference counted to prevent use-after-free when posting
 // between task queues. As such, the implementation MUST NOT make any
 // assumptions about which task queue Resource is destructed on.
-class Resource : public rtc::RefCountInterface {
+class RTC_EXPORT Resource : public rtc::RefCountInterface {
  public:
   Resource();
   // Destruction may happen on any task queue.