diff --git a/specs/src/utils/lruCache.h b/specs/src/utils/lruCache.h
index c0b980e3..9d2caa29 100644
--- a/specs/src/utils/lruCache.h
+++ b/specs/src/utils/lruCache.h
@@ -5,7 +5,7 @@
 #include <map>
 #include <vector>
 #include <memory>
-#include <cstring>
+#include <cstdint>
 #include <algorithm> // for sort
 #include "utils/ErrorReporting.h"