1 files changed, 2 insertions, 1 deletions
diff --git a/mojo/edk/js/mojo_runner_delegate.h b/mojo/edk/js/mojo_runner_delegate.h
index a76460c..9ab325c 100644
--- a/mojo/edk/js/mojo_runner_delegate.h
+++ b/mojo/edk/js/mojo_runner_delegate.h
@@ -7,13 +7,14 @@
 
 #include "base/macros.h"
 #include "gin/modules/module_runner_delegate.h"
+#include "mojo/edk/js/js_export.h"
 #include "mojo/public/c/system/core.h"
 
 namespace mojo {
 namespace edk {
 namespace js {
 
-class MojoRunnerDelegate : public gin::ModuleRunnerDelegate {
+class MOJO_JS_EXPORT MojoRunnerDelegate : public gin::ModuleRunnerDelegate {
  public:
   MojoRunnerDelegate();
   ~MojoRunnerDelegate() override;