diff --git a/llvm/include/llvm/Debuginfod/Debuginfod.h b/llvm/include/llvm/Debuginfod/Debuginfod.h
index efa460466fc537..496b24cfa37e5b 100644
--- a/llvm/include/llvm/Debuginfod/Debuginfod.h
+++ b/llvm/include/llvm/Debuginfod/Debuginfod.h
@@ -31,6 +31,7 @@
 #include "llvm/Support/Timer.h"
 
 #include <chrono>
+#include <condition_variable>
 #include <queue>
 
 namespace llvm {