diff --git a/src/sled/utility/slice.h b/src/sled/utility/slice.h
index 7251180..f98bf6f 100644
--- a/src/sled/utility/slice.h
+++ b/src/sled/utility/slice.h
@@ -4,6 +4,7 @@
 #pragma once
 
 #include <cassert>
+#include <cstring>
 #include <string>
 
 namespace sled {