diff --git a/src/libs/clangsupport/clangpathwatcher.h b/src/libs/clangsupport/clangpathwatcher.h
index 13e026ee092..2b9d517a6ca 100644
--- a/src/libs/clangsupport/clangpathwatcher.h
+++ b/src/libs/clangsupport/clangpathwatcher.h
@@ -77,7 +77,7 @@ using IdCache = StringCache<Utils::SmallString,
 
 template <typename FileSystemWatcher,
           typename Timer>
-class ClangPathWatcher : public ClangPathWatcherInterface
+class CLANGSUPPORT_EXPORT ClangPathWatcher : public ClangPathWatcherInterface
 {
 public:
     ClangPathWatcher(FilePathCachingInterface &pathCache,
diff --git a/src/libs/clangsupport/filepathcache.h b/src/libs/clangsupport/filepathcache.h
index 0e8fa7e4dfe..81bc3f40cc8 100644
--- a/src/libs/clangsupport/filepathcache.h
+++ b/src/libs/clangsupport/filepathcache.h
@@ -36,7 +36,7 @@
 namespace ClangBackEnd {
 
 template <typename FilePathStorage>
-class FilePathCache
+class CLANGSUPPORT_EXPORT FilePathCache
 {
     using DirectoryPathCache = StringCache<Utils::PathString,
                                            int,