diff --git a/clangd/CodeComplete.cpp b/clangd/CodeComplete.cpp
index 030b4ba..b96636a 100644
--- a/clangd/CodeComplete.cpp
+++ b/clangd/CodeComplete.cpp
@@ -31,6 +31,7 @@
 #include "Protocol.h"
 #include "Quality.h"
 #include "SourceCode.h"
+#include "TUScheduler.h"
 #include "Threading.h"
 #include "Trace.h"
 #include "URI.h"