diff --git a/include/ck/host_utility/flush_cache.hpp b/include/ck/host_utility/flush_cache.hpp
index 805fb571fb..f490edb678 100644
--- a/include/ck/host_utility/flush_cache.hpp
+++ b/include/ck/host_utility/flush_cache.hpp
@@ -5,6 +5,7 @@
 
 #include <hip/hip_runtime.h>
 #include <set>
+#include <vector>
 
 #include "ck/ck.hpp"
 #include "ck/stream_config.hpp"