diff --git a/src/plugins/coreplugin/iversioncontrol.h b/src/plugins/coreplugin/iversioncontrol.h
index cbde6138b2a..81df51773ab 100644
--- a/src/plugins/coreplugin/iversioncontrol.h
+++ b/src/plugins/coreplugin/iversioncontrol.h
@@ -65,7 +65,7 @@ public:
         OpenMandatory  /*!< Files must always be opened by the VCS */
     };
 
-    class TopicCache
+    class CORE_EXPORT TopicCache
     {
     public:
         virtual ~TopicCache();