diff --git a/utils.cpp b/utils.cpp
index 6a38764..6bd1fc0 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -1,5 +1,7 @@
 #include "utils.h"
 
+#include <cassert>
+#include <cstring>
 #include <fstream>
 #include <regex>