diff --git a/src/include/parser.h b/src/include/parser.h
index d94c31a..e95cccb 100644
--- a/src/include/parser.h
+++ b/src/include/parser.h
@@ -3,6 +3,7 @@
 
 #include <vector>
 #include <variant>
+#include <stdexcept>
 #include "tokenize.h"
 using namespace std;