diff --git a/include/pocketpy/compiler/lexer.hpp b/include/pocketpy/compiler/lexer.hpp
index 41b4cbaf..b8e9ba4a 100644
--- a/include/pocketpy/compiler/lexer.hpp
+++ b/include/pocketpy/compiler/lexer.hpp
@@ -4,7 +4,6 @@
 #include "pocketpy/objects/error.hpp"
 
 #include <variant>
-#include <cstdarg>
 
 namespace pkpy {